Food-grade Silicone Freezer Tray

A food-grade freezer-tray project developed for portioning, low-temperature storage and repeatable demolding.

Portion ControlFood-grade SiliconeFlexible ReleaseLow-temperature Flexibility

Customer Brief

What did the customer need the freezer tray to solve?

Customer Background

A mid-to-high-end retailer of maternal and infant products & household kitchenware, focusing on high-quality food-grade household and food storage supplies. The brand adopts strict standards for material safety, temperature resistance, product details and compliance certification.

Application Scenarios

Quantitative portioning, freezing and fresh-keeping storage of household broth, soup and baby complementary food liquid, as well as thawing and daily access. It is suitable for refined family meal preparation and maternal & infant complementary food storage scenarios.

Core Customer Requirements

Custom food-grade silicone freezer tray tailored for liquid freezing and long-term low-temperature storage. The product fully meets household food storage standards in terms of material, structure and performance, with core requirements as follows:

Safety & Compliance
Compliant with European and American food contact safety standards. Non-toxic and harmless for direct contact with broth and baby food. High and low temperature resistant for safe food application.
Functional Adaptability
Supports quantitative liquid portioning, rapid freezing and fresh-keeping storage. Features smooth demolding without residue and easy thawing, solving common problems of traditional containers such as agglomeration, difficult demolding and food waste.
Practical Structure
Neat divided compartments with uniform capacity. The tray features stable structure, deformation resistance, easy grip and anti-spill design, suitable for stacked storage in refrigerators.
Durable Performance
Flexible and tear-resistant material with excellent alternating high and low temperature resistance. Reusable for repeated freezing, cleaning and high-temperature disinfection to adapt to long-term frequent household use.

Engineered Response

How did the final tray design support portioning and clean release?

Core Product Material

The product is made entirely of FDA-certified food-grade solid silicone to ensure food safety from the source. It is non-toxic, odorless, high and low temperature resistant, flexible and tear-resistant, free of BPA, phthalates, heavy metals and other harmful prohibited substances. The material remains soft and crack-free under long-term low-temperature freezing without harmful precipitation. It supports high-temperature boiling and steam disinfection, fully adapting to the usage demands of fresh liquid storage and repeated cleaning & sterilization.

Overall Production Process

Adopt 3D structural modeling and drawing, customized precision hardware stamping molds, and solid silicone oil pressure integral molding technology. The tray features neat compartment structure, uniform wall thickness, smooth and rounded edges without burrs or sharp corners. It has high toughness and load-bearing capacity, resisting deformation during freezing and damage during demolding.

Final Customized Solution

Based on household liquid freezing pain points and mid-to-high-end kitchenware positioning, an integrated customized solution with high safety, high compatibility and high durability is finalized, with core advantages as follows:

Finished food-grade silicone freezer tray solution

Integrated Safety Structure
Integrally molded without splicing or gaps, effectively avoiding dirt accumulation and accessory falling off. Dead-corner-free cleaning ensures long-term food hygiene.
Dual High & Low Temperature Resistance
Resists low-temperature freezing without embrittlement or cracking, and supports high-temperature boiling and steam disinfection. No aging or deformation under alternating cold and hot conditions.
Residue-free & Easy Demolding Design
Optimized smooth inner wall radian combined with high resilience silicone enables complete demolding of frozen broth, reducing residue waste and facilitating access.
Neat Compartment & Space-saving Storage
Multi-grid quantitative design with uniform capacity, supporting single-grid access and integral stacked placement to save refrigerator space, ideal for refined meal preparation and baby food portioning.
Authoritative Compliance Testing
Finished products pass professional food contact safety tests and meet European and American market access standards, applicable for household and maternal & infant food scenarios.

Production Workflow

How was the freezer tray molded and inspected?

Open the complete food-grade silicone freezer tray process guide

Detailed Production Process

The whole production process is standardized and refined with full-process quality control to ensure stable and consistent batch quality:

Material Preparation & Rubber Mixing: Select premium food-grade silicone raw materials, mix and color with food-grade color masterbatch, and cut quantitative rubber materials precisely. Strictly control the hardness, toughness and color of each batch to ensure uniform quality and zero impurity odor.
Mold Preheating: Clean the special precision silicone tray mold, install it on the vulcanizing machine for constant-temperature preheating, stabilize the molding temperature and environment to ensure flat, regular and uniform molding of the tray.
Material Loading & Mold Closing: Place quantitative silicone materials accurately into the mold cavity, close the mold and exhaust repeatedly to completely eliminate molding defects such as bubbles, material shortage and uneven surfaces, ensuring smooth and flat tray surfaces.
High-temperature Vulcanization:Adopt constant-temperature and pressure high-temperature vulcanization process to fully cross-link and cure the silicone for integral molding. The finished product features compact structure, balanced toughness, excellent tensile and low-temperature resistance, and is not easy to age and crack.
Demolding & Shaping: Standard demolding to completely take out the tray blank, followed by natural air cooling and shaping to effectively prevent plate warping and deformation, ensuring standard size and consistent flatness of each product.
Post-processing, Inspection & Warehousing: Trim excess burrs finely, polish edges to be smooth and burr-free, and conduct secondary high-temperature deodorization baking to completely eliminate production odor and complete aseptic cleaning. Conduct multiple tests including flatness appearance inspection, tensile toughness test, temperature resistance test, and food contact safety test. Qualified products are aseptically packaged and warehoused, fully complying with the market access standards for food-grade appliances.