Aged Eye of Round Steaks | 49-Day Wet Aging with IFP Chilling (-1.9℃)

Investigate the effect of Shell-Superchilling Treatment on M. semitendinosus beef steaks to test and assess the aging quality of 49-day wet-aging processing using King Son Constancy IFP Chilling Technology at -1.9℃ in King Son Convertible IFP Aging Chiller for retail market sales
 
King Son Convertible IFP Aging Chiller is a NOVEL, next generation refrigeration and food preservation solution for the modern AIoT-era. It is incorporated with A7 Intelligent Food-Tech Controller and designed with Constant Temperature and Humidity Multiple Points Monitoring and Servo Control Technology to perform Convertible Temperature Refrigeration System between precision refrigeration and precision freezing for 5 novel next generation refrigeration technologies.

• King Son Constancy Precision Refrigeration Technology (0°C/ 32.00°F - 6°C/ 42.80°F)
• King Son Constancy IFP Chilling Technology (0°C/32℉ – above Initial Freezing Point of food)
• King Son Constancy IFP Superchilling Technology (- 1.5°C/29.30°F to -2°C/28.40°F, just below Initial Freezing Point of food)
• King Son Constancy IFP Superchilling Thawing (-1°C/30.20°F)/Tempering Technology (- 2°C/28.40°F to -5°C/23.00°F)
• King Son Constancy Precision Freezing Technology (- 12°C/10.40°F)

that preserves and processes food in uniform conditions and environments, with temperature fluctuations 0.3°C/0.54°F and humidity fluctuations ±5%. King Son Convertible IFP Aging Chiller is an AIoT machine which incorporates King Son Real-Time Cloud-Based AIoT Operation Tracking and Monitoring APP System and Platform for remote distance servicing and collaboration – thus helping build new partnership opportunities through IoT eco-system.
 
How the King Son Convertible IFP Aging Chiller Enhances Beef Value Through Extended Wet Aging
The King Son Convertible IFP Aging Chiller is a specialized refrigeration system designed to improve the quality and economic value of lean, low-marbled beef cuts such as Eye of Round and Semi-tendon, typically sourced from cull cattle or underutilized aged beef. These cuts are inherently tough and less desirable due to their low intramuscular fat content, which impacts tenderness and flavor. By enabling extended wet aging—a process where meat is aged in vacuum-sealed bags to retain moisture—the IFP Chiller transforms these challenging cuts into premium products. It achieves this through its innovative King Son Constancy IFP Chilling technology and advanced preservation methods, maintaining the temperatures in the range between 0°C/32°F and just above the initial freezing point of the food. This technology overcomes common drawbacks of extended wet aging, such as off-flavors and safety risks, while supporting dynamic pricing strategies based on market research.

 
Why Extended Wet Aging Matters for Lean Beef Cuts
Wet aging is particularly suited for lean cuts like Eye of Round and Semi-tendon because it retains moisture and enhances tenderness through enzymatic breakdown of muscle fibers, without the significant moisture loss associated with dry aging. However, when wet aging extends beyond the typical 21-28 days, challenges arise, including:

• Off-flavors: Bitter, bloody, earthy, fishy, livery, metallic, salty, or sour tastes.
• Oxidation: Lipid and protein degradation that alters flavor and texture.
• Safety Risks: Increased microbial and pathogen growth.

These issues can diminish meat quality and consumer appeal, limiting the economic potential of lean, low-marbled beef. The King Son Convertible IFP Aging Chiller addresses these problems, making extended wet aging viable and profitable.


How it works and conquers drawbacks:
The core of the King Son system lies in its "Initial Freezing Point (IFP) Chilling Technology." This technology operates within a precise temperature range (0°C/32.00°F to just above the food's initial freezing point, typically between -0.5°C and -2.8°C). This is crucial because:

1. Precise Temperature and Humidity Control: The King Son Convertible IFP Aging Chiller maintains highly stable temperature fluctuations (±0.3°C/0.54°F) and humidity fluctuations (±5%). This consistency is paramount for extended aging, preventing:
   • Microbiological and Pathogen Risks: By keeping the beef above its freezing point but significantly colder than traditional refrigeration, the IFP Chilling technology effectively inhibits the proliferation of most spoilage microorganisms and pathogenic bacteria. This creates a "hibernation state" for the beef, significantly extending its safe shelf life. Traditional wet aging, if not perfectly controlled, can lead to uncontrolled bacterial growth.
   • Microbial Analysis (Total Viable Count – TVC)
     • TVC results from Days 35, 42, and 49 confirmed that microbial growth remained effectively controlled, demonstrating the preservation efficacy of the King Son IFP Chilling system.
     • Microbiological analysis was conducted by SGS Taiwan on wet-aged Eye of Round (M. semitendinosus) samples stored at -1.9°C, with the following results:
     • Day 35: 2.0 × 10³ CFU/g (colony forming units per gram
     • Day 42: 3.8 × 10³ CFU/g
     • Day 49: 1.2 × 10⁵ CFU/g
     • Despite the increase observed on Day 49, microbial levels remained within acceptable limits for chilled meat products, further supporting the controlled and extended aging potential enabled by Constancy IFP Chilling Technology.

 

• Lipid and Protein Oxidation: The controlled low-temperature environment and precise humidity management in the IFP Chiller minimize exposure to factors that accelerate oxidation. Oxidation of fats (lipids) and proteins is a primary cause of undesirable off-flavors (e.g., bitter, metallic, rancid) and affects texture in aged meat. By slowing these chemical reactions, the system helps prevent these issues.

1. Enzymatic Tenderization without Spoilage:
   • Endogenous Enzymes: The beef's natural enzymes (e.g., calpains, cathepsins) continue to break down muscle fibers and connective tissue, even at these low, non-freezing temperatures. This enzymatic action is key to tenderization.
   • Flavor Development: While tenderization occurs, the controlled environment prevents the growth of undesirable bacteria that produce off-flavors associated with spoilage (e.g., sour, earthy, fishy, liver, salty). Instead, the controlled enzymatic breakdown can contribute to the development of desirable savory notes. In traditional wet aging, the beef remains in its own juices in a vacuum-sealed bag. While this promotes enzymatic tenderization, the anaerobic environment and the presence of blood/serum can sometimes lead to a "sour blood/serum flavor" or "bag smell" if not handled correctly or aged for too long. The IFP technology aims to mitigate these through its precise control.
2. Maintaining Cellular Integrity: Operating above the initial freezing point prevents the formation of ice crystals within the beef's cellular structure. This avoids cellular damage and "drip loss" (loss of moisture and nutrients) that can occur during freezing and thawing.  
3. Flavor Development and maintaining cellular integrity contributes to better palatability, mouthfeel, tenderness, texture, flavor, juiciness, and overall liking quality of the aged product.
4. UVC Air Ventilation Bacteriostatic System: The integration of UVC air ventilation helps to further control airborne microorganisms within the IFP Chiller, adding an extra layer of microbiological safety, especially important for extended aging periods.

How the King Son Convertible IFP Aging Chiller Enables Extended Wet Aging
The King Son Convertible IFP Aging Chiller is designed to maintain precise control over temperature, humidity, and air quality, creating an optimal environment for extended wet aging. Wet aging involves storing vacuum-packed beef at controlled temperatures to allow enzymatic breakdown, enhancing tenderness and flavor without the significant moisture loss associated with dry aging. The Chiller’s key features include:

1. King Son Constancy IFP Chilling Technology:
   • Operates at 0°C/32°F to just above the initial freezing point (IFP) of beef, typically around -1°C to 0°C for lean cuts like Eye of Round. This narrow temperature range slows microbial growth and enzymatic activity while allowing controlled tenderization and flavor development.
   • Maintains temperature stability within ±0.3°C/0.54°F and humidity stability within ±5%, reducing fluctuations that can accelerate spoilage or oxidation compared to traditional refrigeration (±5°C/9°F fluctuations).
   • The IFP technology creates a "hibernation state" for the meat, minimizing nutrient loss, respiration, and chemical reactions (e.g., lipid and protein oxidation) while preserving cellular integrity.
2. UVC Air Ventilation Bacteriostatic System:
   • Incorporates ultraviolet (UV-C) light to eliminate airborne and surface bacteria, reducing microbial and pathogen risks during extended aging. This system circulates air through a sealed UV channel, ensuring a sterile environment without chemical disinfectants, preserving the meat’s natural flavor.
   • Inhibits harmful microbes and pathogens (e.g., Lactobacilli that cause sour flavors in wet aging), addressing risks like bitter, bloody, earthy, fishy, livery, metallic, or sour off-flavors.
3. A7 Intelligent Food-Tech Controller with AIoT Integration:
   • Monitors and controls temperature, humidity, and air velocity in real time using multiple sensors, ensuring uniform conditions across the chiller. This prevents hot spots or uneven aging that could degrade quality.
   • Cloud-based AIoT Health Check APP allows remote monitoring and alerts for maintenance, ensuring consistent performance and minimizing downtime, which is critical for extended aging periods.
4. Superchilling Preservation Mode:
   • After aging, the chiller can switch to superchilling mode (-1.5°C/29.3°F to -2°C/28.4°F), just below the IFP, to extend shelf life by 2–4 weeks without freezing. This minimizes ice crystal formation that could damage meat structure, maintaining quality for retail distribution.

Why it contributes to lean, low-marbled, tough beef economic value:
Lean, low-marbled, cull cow, and older mature beef often suffer from a perception of toughness and lack of desirable flavor compared to highly marbled prime cuts. This limits their market value. The King Son Convertible IFP Aging Chiller addresses this by:

1. Enhanced Tenderization: The extended, precisely controlled wet-aging process allows for maximum enzymatic breakdown of tough muscle fibers and connective tissue. This significantly improves the tenderness of otherwise tough cuts, making them more palatable and desirable to consumers.
2. Flavor Development and Elimination of Off-Flavors: By preventing the generation of bitter, bloody, earthy, fishy, liver, metallic, salty, or sour flavors, the system ensures that any flavor development is positive. For lean cuts, which inherently have less intramuscular fat to contribute to flavor, successful aging is crucial for developing richness and complexity through protein breakdown into savory amino acids.
3. Increased Culinary Versatility: Tenderized and flavorful lean cuts can be utilized in a wider range of culinary applications that traditionally require more tender or premium cuts. This opens new markets and uses these underutilized products.
4. Reduced Waste and Improved Yield: By effectively preserving the meat and preventing spoilage or excessive trim loss (which can be a concern in dry aging), the system optimizes yield and reduces waste, further enhancing economic value.
5. Meeting Consumer Demand for Sustainable and Value-Added Products: There's a growing consumer interest in utilizing all parts of the animal and reducing food waste. By transforming less-desired cuts into high-quality, value-added products, the King Son system aligns with these sustainability trends and can command a better price.

Why This Technology Improves the Value of Lean, Low-Marbled Beef
Lean, low-marbled cuts like Eye of Round and Semi-tendon from cull cattle are typically tough, less flavorful, and underutilized due to limited marbling and connective tissue breakdown. The King Son Convertible IFP Aging Chiller enhances their value by:

1. Improving Physicochemical Properties:
   • Tenderness: Extended wet aging (7–49 days) allows endogenous proteolytic enzymes (e.g., calpains, cathepsins) to break down myofibrillar proteins and connective tissues, reducing shear force (e.g., a 15% decrease in penetration force by day 28 for rib eye, applicable to lean cuts). This makes tough cuts like Eye of Round more palatable.
   • pH Stability: The chiller maintains pH within the fresh meat range (5.8–6.2), preventing spoilage (pH > 6.7). For example, rib eye aged for 42 days had a pH indicating freshness, suggesting similar benefits for lean cuts.
   • Water Holding Capacity (WHC): Precise humidity control (95% RH) minimizes moisture loss in vacuum-packed wet aging, preserving juiciness compared to dry aging’s 13–50% weight loss.
2. Enhancing Sensory Properties:
   • Flavor Development: Enzymatic breakdown during aging produces peptides, free amino acids, and fatty acids, contributing to savory, nutty, and umami flavors. For lean cuts, wet aging for 21–35 days can develop light cheese and nutty notes, as seen in restaurant applications (e.g., Percent Shabu’s 21-day wet-aged beef).
   • Avoiding Off-Flavors: The UVC system and precise temperature control prevent lipid and protein oxidation, reducing metallic, sour, or livery flavors common in extended wet aging of lean beef.
   • Consumer Appeal: Sensory studies show that wet aging for 14–21 days enhances tenderness and flavor intensity, with consumer clusters preferring 21-day-aged steaks for texture and flavor.
3. Ensuring Microbiological Safety:
   • The UVC bacteriostatic system and IFP Chilling inhibit microbial growth more effectively than traditional refrigeration, reducing risks of pathogens and spoilage bacteria. Volatile Basic Nitrogen (VBN) values for rib eye remained within fresh meat standards (15.3 mg/100g on day 42), indicating safety for extended aging.
   • This allows safe aging up to 49 days, enabling longer periods to achieve optimal tenderness and flavor without spoilage.
4. Economic Value for Cull Cattle:
   • Upgrading Underutilized Cuts: Eye of Round and Semi-tendon, often discounted due to toughness, can be transformed into premium products through extended wet aging, increasing their market value. For example, dry-aged beef commands higher prices (e.g., $14/lb for USDA Select in auctions).
   • Reduced Waste: Superchilling extends shelf life, reducing food waste and enabling retailers to hold inventory longer, aligning with eco-friendly practices.
   • Cost Efficiency: Wet aging avoids the high weight loss of dry aging (0.08% vs. 13.65% for 11 days), making it more cost-effective for lean cuts with low fat content unsuitable for dry aging.

The King Son Convertible IFP Aging Chiller enables the development and implementation of market-oriented, weekly-based dynamic pricing strategies, policies, and retail prices for extended wet-aged beef—specifically Eye of Round and Semi-tendon steaks—through its advanced Initial Freezing Point (IFP) cooling and preservation technology. This system maintains beef at a precise temperature just above its initial freezing point (0°C/32°F), with fluctuations as low as ±0.3°C and humidity control within ±5%, creating optimal conditions for wet aging. By enhancing the physicochemical, sensory, and microbiological quality of lean, low-marbled cuts from cull cattle over weekly aging intervals (days 7, 14, 21, 28, 35, 42, and 49), the chiller increases the economic value of underutilized beef, allowing producers to set tiered prices reflective of quality improvements and market demand.


How the Chiller Enables Dynamic Pricing

1. Controlled Aging Environment：
   The King Son Convertible IFP Aging Chiller uses its Constancy IFP cooling technology to maintain stable conditions during wet aging, where beef is vacuum sealed to retain moisture and aged without exposure to air. This precision ensures consistent enzymatic breakdown of muscle fibers and connective tissues, improving tenderness and flavor over time. For example:
   • By day 14, tenderness begins to improve noticeably.
   • By day 28, significant enhancements in sensory characteristics (tenderness, juiciness, and flavor) are achieved, increasing the beef’s perceived value. This predictable quality evolution allows producers to assign higher prices to beef aged for longer intervals, such as 28 or 35 days, compared to 7 days.
2. Real-Time Quality Monitoring with IoT Capabilities：
   As an Internet of Things (IoT)-enabled device, the chiller features sensors that track critical parameters like temperature, humidity, and potentially quality indicators (e.g., pH or volatile basic nitrogen [VBN] levels) in real time. This data provides insights into the aging process, ensuring optimal conditions and enabling data-driven pricing:
   • If sensors show faster quality improvements (e.g., due to ideal conditions), prices can be adjusted upward sooner.
   • Conversely, if aging slows, pricing can reflect the actual quality, maintaining market competitiveness. By integrating this data with market trends, producers can set dynamic, market-oriented prices that align with consumer demand and competitor offerings.
3. Extended Shelf Life and Flexibility:
   The Chiller’s ability to preserve beef just above its freezing point extends shelf life while maintaining freshness and quality. For instance, beef aged for 35 days can remain stable for an additional week (up to day 42) without significant declines in microbiological safety (e.g., VBN values within fresh meat standards) or sensory attributes. This flexibility allows producers to:
   • Hold inventory longer without waste, adjusting prices based on sales velocity.
   • Offer premium-aged cuts at higher prices during peak demand periods, enhancing profitability.
4. Value Enhancement for Underutilized Cuts:
   Eye of Round and Semi-tendon steaks, derived from lean, low-marbled cull cattle, are typically undervalued due to their toughness. Extended wet aging with the King Son chiller transforms these cuts by:
   • Breaking down connective tissues, improving tenderness.
   • Enhancing flavor through protein degradation, making them comparable to higher-end cuts. For example, aging these cuts to 28 or 35 days can elevate their quality to a premium level, justifying higher retail prices and increasing their economic value.

Why This Approach Works

1. Predictable Quality Improvements：
   The Chiller’s precise control ensures that physicochemical (e.g., tenderness measured by penetration force), sensory (e.g., flavor intensity), and microbiological (e.g., bacterial stability) characteristics improve consistently across the aging intervals. This predictability allows producers to establish a pricing tier system, such as:
   • Day 7: Base price for minimally aged beef.
   • Day 28: Mid-tier price for significantly improved tenderness and flavor.
   • Day 42: Premium price for peak quality, targeting discerning consumers.
2. Market-Oriented Flexibility：
   The IoT data can be paired with market analysis (e.g., demand for aged beef, competitor pricing) to adjust prices dynamically. For instance, if consumer preference shifts toward longer-aged beef, prices for day 35 or 49 cuts can increase, maximizing revenue.
3. Consumer Trust and Transparency：
   Real-time monitoring data can be shared with consumers, detailing the aging duration and conditions. This transparency justifies higher prices for longer-aged beef, as buyers recognize the added value of improved quality.
4. Economic Uplift for Underutilized Beef：
   By enhancing the quality of low-value cuts, the chiller turns a cost liability into a profit opportunity. Aging Eye of Round or Semi-tendon to 35 days, for example, can position them as specialty products, appealing to niche markets willing to pay a premium.

Implementation in Practice
Producers can implement these strategies as follows:

• Set Tiered Pricing: Establish price points for each aging interval (e.g., $8/lb. at day 7, $14/lb. at day 28, $18/lb. at day 42) based on quality data and market research.
• Automate Adjustments: Use the Chiller’s IoT system to update prices in real time on digital platforms, reflecting quality metrics and demand fluctuations.
• Market Premium Products: Promote longer-aged Eye of Round and Semi-tendon steaks as artisanal or gourmet options, leveraging their enhanced sensory profile to target upscale retailers or restaurants.

Weekly Aging Intervals and Dynamic Pricing Strategies
To develop market-oriented pricing strategies, the King Son Convertible IFP Aging Chiller supports extended wet aging M. semitendinosus muscle, Eye of Round beef steaks processing at weekly intervals (7, 14, 21, 28, 35, 42, 49 days), with quality assessments guiding dynamic pricing:

1. Physicochemical and Sensory Changes Over Time:
   • An eye of round steak is made from the M. semitendinosus muscle. Eye of round steak, often called the "silverside," is indeed one of the leanest cuts of beef, sourced from the back leg of the cow.
   • Day 7:
     • Initial enzymatic activity has begun, resulting in a slight improvement in tenderness, as indicated by a minor reduction in shear force
     • Flavor profile remains close to that of fresh beef, with minimal development. pH levels are stable within the range of 5.8–6.2.
     • Best suited for budget-conscious consumers seeking mild textural improvement without pronounced aged flavors.
   • Day 14:
     • Tenderness has moderately improved, accompanied by a significant increase in juiciness and a slight boost in sweetness. Mouthfeel, texture, and flavor have begun to develop, though the changes remain subtle.
     • While the aging effect is evident, additional time is needed—approximately two more weeks—to achieve optimal quality.
     • Suitable for mid-tier market consumers seeking a balance between affordability and improved eating quality.
   • Day 21:
     • Tenderness has continued to improve, with juiciness becoming more noticeable and sweetness slightly enhanced. The texture has softened to a moderate degree yet still falls short of the tenderness level preferred by balanced-flavor consumers.
     • Flavor development remains mild but perceptible. Approximately one additional week of aging is recommended to reach broader consumer acceptability.
     • Well-suited for consumers who prefer a balanced flavor profile with moderate tenderness and juiciness.
   • Day 28:
     • Both tenderness and juiciness have reached levels acceptable to most consumers. The aging effect is now clearly perceptible, contributing to a more developed umami flavor profile.
     • This stage demonstrates a significant quality improvement over frozen counterparts, underscoring the commercial value of wet-aging firm-textured cuts like semitendinosus steak at -2.2°C for 28 days.
     • Ideal for premium market segments seeking enhanced flavor, tenderness, and juiciness with consistent quality.
   • Day 35:
     • The steak aged for 35 days exhibits excellent tenderness, juiciness, and a rich, well-rounded flavor.
     • The aging effect is highly pronounced, delivering a remarkable and delightful tasting experience.
     • Its quality far surpasses that of frozen samples, significantly enhancing its retail and culinary value.
     • Ideally suited for high-end restaurants seeking premium wet-aged beef with depth of flavor and superior texture.
   • Day 42:
     • The semitendinosus (eye of round) steak, aged for 42 days in the King Son Convertible IFP Aging Chiller, exhibited exceptional tenderness, juiciness, and flavor.
     • The tasting experience was highly impressive and enjoyable, with aging effects that were remarkably deep and well-defined.
     • The product's quality clearly surpassed both the 35-day sample and conventional frozen counterparts, with a substantial boost in retail value.
     • Perfectly suited for gourmet consumers who value complexity, depth of flavor, and artisanal aging precision.
   • Day 49:
     • The semitendinosus (eye of round) steak aged for 49 days in the King Son Convertible IFP Aging Chiller reached peak maturity, showing excellent tenderness, juiciness, and a rich, complex aged flavor.
     • The tasting experience was highly satisfying, with aging effects that were distinct, refined, and fully developed.
     • Quality at this stage matched or even surpassed the 42-day sample, offering exceptional depth of flavor and market value.
     • Microbiological safety is reliably maintained through the use of UVC sterilization and precise IFP chilling control.
     • Ideally suited for luxury niche markets that demand premium aged beef with bold, layered flavor and assured safety.
2. Dynamic Pricing Based on Aging Intervals:
   • Market Research: Online retail prices for wet-aged steaks vary widely. For example, USDA Select steaks aged 21 days can fetch $14/lb. in consumer auctions, while premium dry-aged cuts (28–42 days) command $20–30/lb. Wet-aged Eye of Round or Semi-tendon, with lower production costs, can be priced competitively (e.g., $10–18/lb. depending on aging duration).
   • Pricing Strategy:
     • 7–14 days: Budget tier ($8–12/lb.), targeting cost-sensitive consumers seeking improved tenderness.
     • 21–28 days: Mid-tier ($12–16/lb.), appealing to consumers valuing balanced flavor and texture (e.g., cluster-2 consumers preferring 21-day steaks).
     • 35–42 days: Premium tier ($16–20/lb.), targeting high-end restaurants and gourmet markets for complex flavors.
     • 49 days: Luxury tier ($20–22/lb.), for niche markets seeking intense, unique flavors.
   • AIoT Data Utilization: The Chiller’s real-time monitoring provides data on quality metrics (e.g., pH, VBN, tenderness) at each interval, enabling retailers to adjust prices dynamically based on sensory profiles and consumer preferences.
   • Consumer Preferences: Cluster analysis shows varied preferences, with some consumers favoring 21-day-aged steaks for texture and others preferring 14-day for milder flavors. Dynamic pricing aligns with these segments, maximizing market coverage.

Dynamic Pricing Model (for Lean Beef)

Aging Days	Quality Description	Suggested Price (USD/lb.)	Target Market
7 Days	Mild sweetness, firm and elastic bite	$8.00 – $10.00	Value-conscious consumers
14 Days	Slight fiber relaxation, light whey aroma	$10.00 – $12.00	Mid-tier market
21 Days	Improved tenderness, early aged notes	$12.00 – $14.00	Balanced-flavor seekers
28 Days	Softer texture, stable aging aroma	$14.00 – $16.00	Premium retail sector
35 Days	Tender mouthfeel, steady flavor development	$16.00 – $18.00	High-end foodservice
42 Days	Distinct aged aroma, smooth texture	$18.00 – $20.00	Gourmet & chef use
49 Days	Rich aroma complexity, lingering finish	$20.00 – $22.00	Limited-Edition Gourmet Market

Dynamic Pricing Model (for Lean Beef)

Aging Days	Quality Description	Suggested Price (USD/kg.)	Target Market
7 Days	Mild sweetness, firm and elastic bite	$17.64 – $22.05	Value-conscious consumers
14 Days	Slight fiber relaxation, light whey aroma	$22.05 – $26.46	Mid-tier market
21 Days	Improved tenderness, early aged notes	$26.46 – $30.86	Balanced-flavor seekers
28 Days	Softer texture, stable aging aroma	$30.86 – $35.27	Premium retail sector
35 Days	Tender mouthfeel, steady flavor development	$35.27 – $39.68	High-end foodservice
42 Days	Distinct aged aroma, smooth texture	$39.68 – $44.09	Gourmet & chef use
49 Days	Rich aroma complexity, lingering finish	$44.09 – $48.5	Limited-Edition Gourmet Market

3. Implementation in Retail:
   • Labeling: Clearly indicate aging duration and sensory attributes (e.g., “21-Day Wet-Aged Eye of Round: Nutty, Tender”) to guide consumer choice.
   • Online Platforms: Leverage e-commerce trends for wet-aged steaks, offering tiered pricing based on aging duration. For example, restaurants like Percent Shabu emphasize 21-day wet-aged beef for its sweetness and tenderness, driving sales.
   • Inventory Management: King Son Superchilling preservation mode extends shelf life post-aging, allowing retailers to hold 35–42-day-aged steaks for an additional 2–3 weeks, reducing waste and enabling flexible pricing during demand fluctuations.
4. Market launch planning:
   • Market Research: Online retail prices for wet-aged steaks vary widely. For example, USDA Select steaks aged 21 days can fetch $14/lb. in consumer auction, while premium cuts aged 28–42 days command $20–30/lb. Wet-aged Eye of Round or Semi-tendon, with lower production costs, can be priced competitively (e.g., $10–18/lb. depending on aging duration).
   • Pricing Strategy: Producers can target budget-conscious consumers with shorter ageing periods and premium markets with longer durations, leveraging the IFP Chiller’s AIoT capabilities to monitor quality metrics (e.g., pH, VBN, tenderness) and adjust prices dynamically.
   • Implementation: Retailers can label products with aging duration and sensory attributes (e.g., “21-Day Wet-Aged Eye of Round: Nutty, Tender”) and use e-commerce platforms to offer tiered pricing, aligning with consumer preferences. King Son Superchilling preservation mode extends shelf-life post-aging, enabling flexible inventory management and reducing waste.

Economic Impact on the Beef Industry
The use of the King Son Convertible IFP Aging Chiller significantly enhances the economic value of the beef industry by:

• Value Addition: Transforming low-value cuts from cull cattle into premium products increases revenue. For example, Eye of Round, typically sold at $5–7/lb. fresh, can be wet-aged to command $12–18/lb., a 100–200% value increase.
• Market Expansion: Dynamic pricing targets diverse consumer segments (budget, mid-tier, premium, luxury), broadening the market for underutilized cuts and increasing sales potential.
• Sustainability: Reduced weight loss (0.08% vs. 13.65% for dry aging) and extended shelf life via superchilling minimize food waste, aligning with eco-friendly goals and reducing costs.
• Competitive Advantage: The Chiller’s AIoT capabilities enable data-driven decisions, optimizing aging processes and pricing to meet market demands, giving retailers a technological edge over competitors.

Conclusion
The King Son Convertible IFP Aging Chiller revolutionizes extended wet aging for lean, low-marbled beef cuts by maintaining precise temperature (0°C to above IFP, ±0.3°C), humidity (±5%), and microbiological safety via UVC systems. This technology overcomes challenges like oxidation, off-flavors, and microbial risks, enhancing tenderness, flavor, and shelf life. By aging at weekly intervals (7–49 days), it supports dynamic pricing strategies tailored to consumer preferences, transforming underutilized cull cattle cuts into high-value products. This increases economic value for the beef industry through higher margins, reduced waste, and expanded market opportunities, as evidenced by case studies like Percent Shabu and online pricing trends.

 
Wet Ageing Commercial Practice Study by utilizing King Son Convertible IFP Aging Chiller
Percent Shabu and Wet Aging Practices
Percent Shabu, a restaurant in Taoyuan, Taiwan, uses the King Son Convertible IFP Aging Chiller for wet aging beef for 21 days and pork for 14 days. Their experience highlights the technology’s benefits:

• Wet-aged beef is described as palatable with sweetness and tenderness, featuring light cheese and nutty notes, distinct from ordinary hot pot meats.
• For lean cuts, wet aging 21-day American boneless short rib, ribeye, and flat iron beef slices results in moisture evaporation, reduced liquid, muscle tissue breakdown, and a sweet, tender, non-greasy texture, making them suitable for premium markets.
• The owner prioritizes quality, waiting for the aging process to complete before selling, suggesting higher demand and pricing for aged products, aligning with dynamic pricing strategies.
• https://www.kingson-foodtech.com/en/a4-11121-14399/Percent-Shabu.html
• https://www.facebook.com/percentshabu/

 

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49-Day Dynamic Pricing and Quality Trend for Wet-Aged Eye of Round

Introduction

This report summarizes the extended wet aging study of Eye of Round (M. semitendinosus) steaks aged for up to 49 days using King Son Convertible IFP Aging Chiller at -1.9°C. The study evaluates quality improvements in tenderness, juiciness, and flavor, microbial safety, and market-aligned dynamic pricing.

Sensory Quality by Aging Day

The sensory profile (tenderness, flavor, juiciness) developed steadily between Days 7 and 42. A slight decline was observed on Day 49.

Microbial Safety (TVC)

Microbiological analysis (Total Viable Count, CFU/g) by SGS Taiwan confirms safety for extended wet aging:
- Day 35: 2.0 × 10³ CFU/g
- Day 42: 3.8 × 10³ CFU/g
- Day 49: 1.2 × 10⁵ CFU/g
These results confirm microbial growth remained effectively controlled under King Son Constancy IFP Chilling Preservation conditions, staying within safe limits for chilled beef.

 

Suggested Retail Pricing

Based on sensory quality and market value positioning, suggested prices for wet-aged Eye of Round are summarized:

Aging Day	USD/lb	USD/kg	Target Market
7	$8.00	$17.64	Value-conscious
14	$10.00	$22.05	Mid-tier / Balanced flavor
21	$12.00	$26.46	Mid-tier / Balanced flavor
28	$14.00	$30.87	Premium / Foodservice
35	$16.00	$35.28	Premium / Foodservice
42	$18.00	$39.68	Gourmet / Limited Edition
49	$20.00	$44.09	Gourmet / Limited Edition

 

 

Flavor, TVC & Pricing Trends (USD/lb)

 

Flavor, TVC & Pricing Trends (USD/kg)

 

 
 

Download:

1. Shell-Superchilling Treatment on Eye of Round (M. semitendinosus) beef steaks and 49-day wet-aging processing using King Son Constancy IFP Chilling Technology at -1.9℃ in King Son Convertible IFP Aging Chiller 
2. 49-Day Dynamic Pricing and Quality Trend for Wet-Aged Eye of Round
3. Lab testing: Shell-Superchilling Treatment on Eye of Round (M. semitendinosus) beef steaks and 49-day wet-aging processing using King Son Constancy IFP Chilling Technology at -1.9℃ in King Son Convertible IFP Aging Chiller 
4. Evaluating Shell-Superchilling and Extended Wet-Aging for Retail Beef
5. Summary Shell-Superchilling Treatment on M. semitendinosus (Eye of Round) beef steaks to test and assess the aging quality of 49-day wet-aging processing using King Son Constancy IFP Chilling Technology at -2.7℃ in King Son Convertible IFP Aging Chiller
6. Investigation of Shell-Superchilling Treatment and Extended Wet-Aging on M. semitendinosus Beef Steaks for Enhanced Palatability and Retail Value
7. Effect of Shell-Superchilling and Extended Wet-Aging on the Palatability of M. semitendinosus Beef Steaks
8. Final Summary Report with Visuals and Flavor Descriptions