Vacuum metal tin for caviar, as an exclusive container for high-end precious ingredients storage, its core value lies not only in the presentation of high-end texture appearance but also in the quantifiable and traceable excellent technical performance and standardized configuration. The delicate characteristics of caviar put extremely high requirements on the core technical indicators of the storage container, such as vacuum sealing, material safety, structural stability, and environmental adaptability. The precise control of parameters is the key to protecting the original taste of caviar, and also the core support for the product to adapt to multiple scenarios such as high-end catering, brand customization, and long-distance transportation. With the core principles of "up-to-standard parameters, excellent performance, practical configuration, and controllable data", this product comprehensively standardizes the technical parameter system, and details the product technical details from three dimensions: core performance, hardware configuration, and key data indicators. All parameters have been verified by authoritative testing institutions to ensure that every data is true and reliable, allowing users to clearly understand the product strength and highlight the professionalism and standardization level of high-end caviar containers.

　　Technical parameters are an intuitive reflection of product performance and the core guarantee for the safety of caviar storage. Abandoning the drawbacks of vague parameters and uneven performance of traditional metal cans, this product strictly follows the GB 4806.9-2016 standard for metal materials in contact with food, ISO 9001 quality management system standard, and international food container safety certification requirements. It accurately defines every core technical parameter, covering key dimensions such as vacuum sealing performance, material performance, structural strength, and environmental resistance. At the same time, it clarifies the detailed specifications and data indicators of hardware configuration, realizing "performance with data, configuration with standards, and indicators verifiable". It not only meets the strict requirements of long-term storage of high-end caviar but also provides a clear parameter basis for bulk purchase and customized production, completely solving the industry pain point of "opaque parameters and unguaranteed performance" of traditional containers.

　　I. Core Performance Parameters: Precisely Quantified to Protect the Safety of Caviar Storage. Core performance parameters are the core competitiveness of the product. Focusing on the core needs of caviar storage, this product optimizes three core performances: vacuum sealing, material safety, and structural durability. All parameters have been repeatedly tested and verified to ensure stable compliance, providing comprehensive storage protection for caviar.

　　(1) Vacuum Sealing Performance Parameters: Tight Sealing, Long-term Fresh-keeping, and Preventing Air Invasion. Vacuum sealing is the core demand for caviar storage. This product adopts aerospace-grade vacuum sealing technology, and the relevant performance parameters are precisely controllable, ensuring that a stable vacuum environment is maintained in the can for a long time, effectively isolating air, preventing moisture and oxidation, and protecting the freshness and taste of caviar. The specific parameters are as follows: the vacuum degree is controlled between -0.085MPa and -0.095MPa, with a fluctuation error of no more than ±0.003MPa, ensuring that the residual air volume in the can is ≤0.5%, fundamentally eliminating oxidative deterioration; the seal leakage rate is ≤0.01ml/(cm·h), and in an environment of normal temperature 25℃ and humidity 60%, it can maintain a continuous seal for 720 hours (30 days) without leakage, and the vacuum degree attenuation is ≤0.005MPa, ensuring long-term sealing and fresh-keeping; the vacuum retention time is ≥180 days, and under the premise of correct use and intact sealing, there is no need to re-vacuum, realizing long-term storage of caviar; the seal temperature resistance range is -25℃ to 80℃, adapting to different temperature scenarios such as refrigeration, normal temperature, and short-distance transportation, the sealing performance does not attenuate, and the seal will not fail due to temperature changes.

　　(2) Material Safety Performance Parameters: Food-grade Standard, Pollution-free and Harmless, Suitable for Precious Ingredients. Material safety is the bottom line of caviar storage. This product selects two high-end food-grade metal materials, which have passed multiple tests to ensure that the material performance meets the standards, no harmful substances are precipitated, and it is completely suitable for the storage needs of precious ingredients such as caviar. The specific parameters are as follows: the high-end customized version adopts food-grade 304 stainless steel material, the material composition complies with the GB 4806.9-2016 standard, the chromium (Cr) content is 18.0%-20.0%, the nickel (Ni) content is 8.0%-10.5%, the carbon (C) content is ≤0.08%, no harmful heavy metals such as lead, cadmium, and mercury, the heavy metal precipitation is ≤0.001mg/kg, which is far lower than the national limit of 0.01mg/kg; the regular version adopts high-quality tinned iron material, the tin layer thickness is ≥0.02mm, the uniformity error is ≤0.003mm, the tin layer adhesion is ≥4.5N/10mm, no shedding or iron exposure, the base material adopts SPCC cold-rolled steel plate, the impurity content is ≤0.03%, the tensile strength is ≥320MPa, and the elongation is ≥28%; both materials have undergone three pre-treatment processes: passivation, high-temperature derusting, and food-grade cleaning, the surface roughness of the material is Ra ≤0.8μm, no burrs or odors, complying with international food contact material safety certifications (FDA, LFGB), and can be directly in contact with caviar without affecting the taste and quality of the ingredients.

　　(3) Structural Durability Performance Parameters: Sturdy and Stable, Damage-resistant, Suitable for Multi-scenario Use. This product adopts a scientifically reinforced structural design, and the structural performance parameters are precisely optimized to ensure that the container has sufficient drop resistance, compression resistance, and wear resistance, adapting to the loss test of transportation, storage, use and other full scenarios. The specific parameters are as follows: the compression strength of the can body is ≥500N/cm², which can withstand 50kg heavy objects pressing vertically for 24 hours without depression or deformation, the stacking layer can reach 8 layers (single can weight ≤300g), no collapse risk; the drop resistance meets the 1.8-meter free fall standard, free falling from 1.8 meters to the cement ground, falling continuously for 10 times, the can body is not damaged, deformed or leaked, and the sealing performance remains intact; the wear resistance of the can body is ≥5000 times, repeatedly wiping the surface of the can body with standard wear-resistant test paper, no scratches, no paint loss, no bottom exposure; the service life of the can lid opening and closing is ≥10000 times, after repeated opening and closing, the can lid is not deformed, the seal is not worn, and the sealing performance still meets the standard; the rounding precision of the can mouth is ≤0.01mm, no sharp edges and corners, smooth surface, avoiding scratching hands and ingredients.

　　(4) Environmental Resistance Performance Parameters: Adapt to Multiple Scenarios, Stable Performance Without Attenuation. Aiming at different usage scenarios, this product optimizes the environmental resistance performance, and the parameters are adapted to multiple environments such as refrigeration, humidity, and long-distance transportation, ensuring stable performance even in complex environments. The specific parameters are as follows: low-temperature resistance, placed in -25℃ environment for 72 hours, the can body is not deformed, the seal is not leaked, and the material is not brittle; high-temperature resistance, placed in 80℃ environment for 24 hours, the surface coating is not shed or discolored, and the seal is not aged or deformed; moisture resistance, placed in 90% humidity and 25℃ environment for 30 days, the can body is not rusted or oxidized, and the surface has no mold; corrosion resistance, soaked in 5% salt solution for 24 hours, no rust, no bubbles, no metal ion precipitation, complying with the corrosion resistance standard of food containers; vibration resistance, simulating the long-distance transportation vibration frequency (10-50Hz), continuous vibration for 24 hours, the can body is not loose, damaged or leaked, and the sealing performance remains stable.

　　II. Hardware Configuration Parameters: Standardized Configuration, Practical Adaptation, Balancing High-end and Convenience. The hardware configuration of this product focuses on the three cores of "practicality, convenience, and high-end". All configurations have clear specification parameters, adapting to different usage scenarios and customization needs, while balancing operational convenience and product texture, achieving a perfect match between configuration and performance.

　　(1) Can Body Configuration Parameters: Complete Specifications, Adapting to Different Storage Needs. The can body specification parameters are standardized, providing a variety of models to adapt to the storage needs of caviar of different capacities and scenarios. The specific parameters are as follows: the can body diameter is divided into three specifications: 5cm, 7cm, and 9cm, with an error of ≤0.05mm; the can body height is divided into three specifications: 8cm, 10cm, and 12cm, with an error of ≤0.05mm; the corresponding capacity is divided into three models: 100ml, 200ml, and 300ml, with a capacity error of ≤±2ml, which can accurately adapt to the storage of caviar of different weights; the can body thickness is controlled between 0.4-0.6mm, the high-end customized version (304 stainless steel) has a thickness of 0.5-0.6mm, the regular version (tinned iron) has a thickness of 0.4-0.5mm, and the thickness uniformity error is ≤0.02mm; the surface treatment of the can body is divided into three configurations: environmental protection tin plating, vacuum baking paint, and laser engraving, the environmental protection tin plating layer thickness is ≥0.02mm, the vacuum baking paint layer thickness is ≥0.03mm, the laser engraving precision is ≤0.01mm, and the corresponding configuration can be selected according to customization needs; the side wall of the can body is provided with 3-4 annular reinforcing ribs, the width of the reinforcing ribs is 8mm, the thickness is 0.8mm, and the spacing is uniform to enhance the compression performance of the can body; the bottom of the can adopts a thickened anti-slip design, which is 0.1mm thicker than the can body, and 4 anti-slip protrusions are set, the height of the protrusions is 2mm, and the diameter is 5mm to improve the placement stability.

　　(2) Can Lid and Seal Configuration Parameters: Precision Adaptation to Ensure Long-term Stable Sealing. The can lid and sealing system are the core of vacuum sealing performance, and the configuration parameters are precisely optimized to ensure tight sealing and convenient operation. The specific parameters are as follows: the thickness of the can lid is consistent with the can body, with an error of ≤0.02mm, adopting integrated stamping forming, and the material is consistent with the can body (304 stainless steel or tinned iron), with firm texture and no deformation hidden danger; the sealing groove is precision processed, with a groove width of 8mm and a groove depth of 3mm, and the dimensional error is ≤0.01mm, which fits perfectly with the seal; the seal is made of food-grade silicone material, with a Shore hardness of 50-55 degrees, a thickness of 3mm, a width of 7.8mm, a tensile strength of ≥3.5MPa, an elongation at break of ≥300%, no odor, no harmful substances, a high-temperature resistance range of -30℃ to 120℃, excellent aging resistance, and a service life of ≥3 years; the vacuum valve is configured with metal material (consistent with the can body material), the valve diameter is 12mm, the height is 8mm, adopting precision thread connection, the sealing performance meets the standard, can withstand repeated pressing ≥5000 times without damage or air leakage, easy to operate, and can quickly vacuum and release pressure; the can lid is provided with anti-slip texture, the texture width is 1mm, the spacing is 2mm, which increases the friction force of holding and avoids slipping when opening and closing.

　　(3) Auxiliary Configuration Parameters: Detail Optimization to Improve User Experience. This product adds a number of practical auxiliary configurations, all of which have clear parameters, balancing practicality and convenience. The specific parameters are as follows: portable configuration, optional metal handle or lanyard design, the metal handle is made of 304 stainless steel material with a thickness of 0.5mm, length 15cm, bearing capacity ≥5kg, no deformation or fracture; the lanyard is made of food-grade nylon material, diameter 2mm, length 30cm, tensile strength ≥100N, not easy to wear or break; identification configuration, the can body reserves a standardized customization area, the size of the customization area is 3cm×5cm (adjustable according to needs), supporting three customization methods: laser engraving, screen printing, and gold stamping, the customization precision is ≤0.01mm, the identification is clear and not easy to fall off; cleaning configuration, equipped with a food-grade cleaning cloth, size 20cm×20cm, material is ultra-fine fiber, water absorption ≥500ml/g, reusable, no fiber shedding, will not pollute caviar.

　　III. Key Data Indicators: Authoritatively Verified, Quantifying Product Strength. Key data indicators are the core quantitative embodiment of product performance and configuration. All data indicators of this product have been tested and verified by authoritative testing institutions (SGS, Intertek) to ensure accuracy and reliability, covering all dimensions such as materials, performance, and configuration, making product strength quantifiable and traceable.

　　(1) Material Data Indicators: Strictly Up to Standard, Safe and Controllable. 1. 304 stainless steel material: density 7.93g/cm³, melting point 1450-1480℃, thermal conductivity 16.2W/(m·K), specific heat capacity 0.5J/(g·℃), tensile strength ≥520MPa, compressive strength ≥200MPa, hardness HB≤201, elongation ≥40%, heavy metal precipitation ≤0.001mg/kg, complying with GB 4806.9-2016, FDA, LFGB standards; 2. Tinned iron material: base material density 7.85g/cm³, melting point 1538℃, thermal conductivity 45W/(m·K), specific heat capacity 0.46J/(g·℃), tensile strength ≥320MPa, compressive strength ≥150MPa, hardness HB≤180, elongation ≥28%, tin layer thickness ≥0.02mm, tin layer adhesion ≥4.5N/10mm, heavy metal precipitation ≤0.001mg/kg, complying with GB 4806.9-2016 standard; 3. Food-grade silicone seal: density 1.1-1.2g/cm³, Shore hardness 50-55 degrees, tensile strength ≥3.5MPa, elongation at break ≥300%, compression set ≤10% (70℃, 24 hours), no harmful substances precipitated, complying with GB 4806.11-2016 standard.

　　(2) Performance Data Indicators: Precisely Quantified, Stable and Reliable. 1. Vacuum sealing indicators: vacuum degree -0.085~-0.095MPa, fluctuation error ±0.003MPa, residual air volume ≤0.5%, leakage rate ≤0.01ml/(cm·h), vacuum retention time ≥180 days, seal temperature resistance -25℃~80℃; 2. Structural strength indicators: compressive strength ≥500N/cm², drop height 1.8 meters (no damage for 10 times), wear resistance ≥5000 times, can lid opening and closing life ≥10000 times, rounding precision ≤0.01mm; 3. Environmental resistance indicators: low temperature resistance -25℃ (no abnormality for 72 hours), high temperature resistance 80℃ (no abnormality for 24 hours), moisture resistance 90% humidity (no rust for 30 days), corrosion resistance (no rust in 5% salt solution for 24 hours), vibration resistance 10-50Hz (no looseness for 24 hours); 4. Safety indicators: heavy metal precipitation ≤0.001mg/kg, odor grade ≤1 (no odor), total bacterial count ≤10CFU/g, complying with food container safety standards.

　　(3) Configuration Data Indicators: Standardized and Regulated, Adapting to Multiple Needs. 1. Can body specification indicators: diameter 5/7/9cm (error ≤0.05mm), height 8/10/12cm (error ≤0.05mm), capacity 100/200/300ml (error ≤±2ml), thickness 0.4-0.6mm (error ≤0.02mm), reinforcing rib width 8mm, thickness 0.8mm, can bottom anti-slip protrusion height 2mm, diameter 5mm; 2. Can lid and seal configuration indicators: can lid thickness is consistent with the can body (error ≤0.02mm), sealing groove width 8mm, depth 3mm (error ≤0.01mm), silicone seal thickness 3mm, width 7.8mm, vacuum valve diameter 12mm, height 8mm, pressing life ≥5000 times; 3. Auxiliary configuration indicators: metal handle thickness 0.5mm, length 15cm, bearing capacity ≥5kg, lanyard diameter 2mm, length 30cm, tensile strength ≥100N, customization area 3cm×5cm (adjustable), cleaning cloth 20cm×20cm, water absorption ≥500ml/g.

　　IV. Core Advantages of Parameters: Standardized, Verifiable, and High Adaptability. The technical parameter system of this product has three core advantages, highlighting the professionalism and competitiveness of high-end caviar vacuum metal cans: first, parameter standardization, all core performances and hardware configurations have clear quantitative indicators, no vague expressions, ensuring product consistency and adapting to mass production and customization needs; second, data verifiable, all parameters have been verified by authoritative testing institutions, providing test reports to ensure true and reliable data, allowing users to use with confidence; third, high scenario adaptability, parameter optimization is suitable for multiple scenarios such as high-end catering, brand customization, long-distance transportation, and home storage, whether it is low-temperature refrigeration or long-distance bumps, it can maintain stable performance and protect caviar quality.

　　Vacuum metal tin for caviar, with precise technical parameters, excellent product performance, and standardized hardware configuration, has become the preferred container for high-end caviar storage. The polishing of every parameter and the control of every data are to better protect the original taste of caviar, provide users with a "safe, reliable, and convenient" storage experience, and at the same time convey professional and exquisite brand concepts for high-end caviar brands, adapt to multiple scenarios, and achieve the triple goals of "safe storage, convenient use, and high-end quality".