# Food Grade Liquid Silicone Baby Food Storage Containers
Product Overview
Our Food Grade Liquid Silicone Baby Food Storage Containers are purpose-engineered to address the unique safety, convenience, and durability needs of infant and toddler food storage. Manufactured from high-purity food-contact grade liquid silicone rubber (LSR) via injection molding, these containers eliminate the risk of microplastic leaching, chemical transfer, and breakage common with plastic and glass alternatives, making them the gold standard for discerning parents and childcare providers.
Each unit features an integrated airtight snap-on lid with a raised label area for date and content marking, a stackable space-saving design, and translucent walls for quick content identification without lid removal. The core design prioritizes infant safety: all edges are rounded to a minimum 1.5mm radius to prevent cuts, the lid seal requires only 15N of force to close for adult accessibility but is toddler-proof to avoid accidental spills, and the flexible silicone body allows for easy portion squeezing out of the container without scraping. The containers are compatible with all common household appliances, including microwaves, dishwashers, freezers, and bottle sterilizers, streamlining the entire food preparation, storage, and cleaning workflow for busy caregivers.
Technical Specifications
Material Properties
All components of the storage containers are crafted from 100% pure food-grade LSR, with no added fillers, BPA, phthalates, PVC, lead, melamine, or artificial colorants that may leach into acidic or fatty baby foods (e.g., pureed berries, avocado, meat purees). Key material compliance and chemical properties include:
- Compliance with global food contact regulations: US FDA 21 CFR Part 177.2600, EU Regulation 10/2011, China GB 4806.11-2021, and Australia Food Standards Code
- Volatile organic compound (VOC) content: <0.1% (tested per ISO 10993-17 for biocompatibility)
- Extractable heavy metal content (lead, cadmium, mercury, arsenic): <0.01ppm, far below international safety thresholds
- Hydrophobic surface with a water contact angle of 112°, preventing food residue adhesion and bacterial colonization
- Resistance to common food stains: turmeric, tomato sauce, and beetroot puree leave no permanent discoloration after standard dishwasher cycles
Physical Performance
The containers are engineered to withstand extreme temperature fluctuations and repeated daily use without performance degradation:
- Operating temperature range: -60°C to 230°C (-76°F to 446°F), suitable for long-term freezer storage and high-temperature steam sterilization
- Shore A hardness: 50±5, balancing structural rigidity for stacking with flexibility for easy food removal
- Tensile strength: 7.5MPa, with a tear resistance of 25kN/m, resisting cuts from metal spoons and sharp food particles (e.g., crushed bone in meat purees)
- Elastic recovery rate: 98% after 1000 cycles of 50% compression, eliminating permanent deformation from repeated squeezing and stacking
- Lid seal performance: Maintains <0.05atm internal pressure differential for 72 hours at 25°C, preventing leaks, oxidation, and cross-contamination with other refrigerator contents
- Thermal shock resistance: No cracking or deformation when transferred directly from a -40°C freezer to a 120°C microwave
Process Parameters
The containers are manufactured in a Class 100,000 cleanroom environment to ensure zero contamination during production:
- LSR injection molding temperature: 170°C to 190°C, with a holding pressure of 80bar to eliminate internal bubbles and surface defects
- Post-curing process: 2 hours at 200°C to remove all residual low-molecular-weight compounds, eliminating that "new rubber" odor common with low-quality silicone products
- Dimensional tolerance: ±0.1mm for lid seal edges, ensuring a consistent airtight fit across every unit
- Surface finish: 0.8μm Ra polished internal surface, reducing residue adhesion and simplifying cleaning
Product Advantages
- Unmatched Infant Safety Profile
Unlike polypropylene (PP) plastic containers, which may release microplastics and bisphenol analogs when exposed to high temperatures or acidic foods, our LSR containers undergo third-party biocompatibility testing per ISO 10993, confirming no irritation to infant skin or digestive tracts even with prolonged contact with food. The material does not react with any common baby food ingredients, eliminating the risk of off-flavors or chemical transfer to sensitive developing systems.
- Cost-Effective Long-Term Durability
Independent testing confirms the containers retain 95% of their physical properties after 3000 cycles of washing, sterilization, and freezing, giving them a minimum 3-year service life—10x longer than disposable plastic storage bags and 3x longer than standard PP containers. They are shatterproof even when dropped from a 2m height onto concrete, eliminating the risk of glass shard injuries in households with active toddlers.
- Caregiver-Centric Usability Design
The stackable, square profile reduces refrigerator storage footprint by 30% compared to round containers, while the translucent silicone allows quick content identification without lid removal. The lid’s integrated date marking area eliminates the need for disposable adhesive labels, and the flexible body lets caregivers squeeze out exact portion sizes directly into a bowl or spoon, reducing food waste and mess. The containers are fully dishwasher-safe (top or bottom rack) and require no special cleaning tools, even for sticky foods like rice cereal or peanut butter puree.
- Eco-Friendly and Circular
The LSR used in the containers is 100% recyclable at the end of its service life, and all packaging is made from uncoated FSC-certified cardboard with zero single-use plastic inserts. Unlike plastic containers that degrade with use and end up in landfills, these containers can be passed down to younger siblings or repurposed for craft supplies, snack storage, or travel toiletries once they are no longer needed for baby food.
Applications
These containers are designed for both residential and commercial childcare use cases:
- Residential Home Use: Ideal for storing portioned baby food purees, finger foods, yogurt melts, frozen breast milk cubes, and toddler snacks for outings. They fit in all standard diaper bag pockets and stroller cup holders for travel.
- Commercial Childcare Centers: Approved for bulk food storage in licensed daycare facilities, with the airtight seal meeting health department requirements for preventing cross-contamination between children’s meals. The shatterproof design eliminates safety risks in high-traffic play areas.
- Specialized Infant Nutrition Programs: Used in hospital neonatal intensive care units (NICUs) and WIC (Women, Infants, and Children) programs for storing medically prescribed infant diets, as the non-reactive material ensures accurate nutrient content measurement and no chemical interference with specialized formulas.
- Travel and Outdoor Use: The leakproof design makes them suitable for camping, road trips, and air travel, with no risk of breakage or spillage in carry-on luggage. They can be heated directly in portable travel bottle warmers without transfer to a separate dish.
Selection Guide
Hardness Selection
- 45 Shore A (Soft Flex): Recommended for use as frozen food molds and for serving younger infants (4-8 months) who eat primarily pureed foods. The extra-flexible body allows easy squeezing of frozen food cubes directly into a bowl for heating, reducing the need for scraping.
- 50 Shore A (Standard): The most versatile option, suitable for all general storage needs including both wet purees and dry finger foods for infants 8 months and older. It balances flexibility with enough rigidity for stable stacking in full refrigerators.
- 55 Shore A (Rigid): Ideal for commercial childcare settings and travel use, where extra durability is required for frequent handling, transport, and high-volume sterilization cycles.
Size Specifications
All sizes feature a 6cm x 6cm square footprint for uniform stacking:
- 30ml (1oz): Perfect for single servings of spice mixes, early introduction portion sizes for 4-6 month olds, and frozen breast milk fortifier cubes.
- 60ml (2oz): Standard portion size for 6-9 month old puree servings, and for storing homemade yogurt melts and small finger foods like puffs.
- 120ml (4oz): Suitable for 9-12 month old meal portions, and for storing full servings of toddler snacks like cut fruit or cheese cubes.
- 240ml (8oz): Designed for bulk storage of pre-made puree batches, and for storing full toddler meals for day care or travel.
Material Grade
- Standard Food Grade: Meets all global food contact regulations and is suitable for typical home use, with a 2-year manufacturer warranty.
- Medical-Grade LSR Upgrade: Meets ISO 13485 medical device manufacturing standards, with additional testing for zero extractable compounds. Recommended for infants with severe food allergies, immunodeficiencies, or gastrointestinal sensitivities, with a 3-year extended warranty.
Quality Assurance
Every batch of our Food Grade Liquid Silicone Baby Food Storage Containers undergoes rigorous quality control testing before release:
- Incoming material inspection: Each batch of LSR is tested for purity and compliance with food contact standards before entering the production facility.
- In-process testing: 100% of units undergo dimensional inspection, seal leak testing, and visual defect checks to ensure no molding flaws or seal gaps.
- Finished product testing: Every production lot is tested for heavy metal leaching, high-temperature sterilization resistance, and drop impact resistance by an independent third-party testing laboratory (SGS or Intertek).
- Certification: All products carry FDA, CE, LFGB, and RoHS marks, with full test reports available for download on our website upon request.
- Warranty: We offer a 2-year standard warranty against manufacturing defects, with a no-questions-asked replacement policy for any units that show signs of tearing, seal failure, or permanent staining within the warranty period.
All products are manufactured in facilities certified to ISO 9001 quality management system standards, with full traceability for every unit from raw material batch to end customer.
