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Premium Square Borosilicate Glass Jars Factory Reliable China Suppliers

YINTO GLASS is a leading China factory and suppliers of premium square borosilicate glass jars. Featuring FDA and LFGB approved food-grade materials with tempered glass lids and silicone gaskets. BPA FREE, freezer and dishwasher safe, with customizable silicone colors and volumes.



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Elevate your kitchen organization with our Premium Square Borosilicate Glass Jars. Crafted from high-grade hard glass, these containers offer an exceptional balance of chemical stability, superior hardness, and crystal-clear transmittance. Designed for the modern home, the square geometry optimizes storage space while providing a sleek, professional aesthetic for any countertop or pantry.

Featuring a sophisticated glass lid integrated with a high-performance silicone seal, these jars ensure a 100% airtight and leak-proof environment to maintain the freshness of your ingredients. Whether used for spices, grains, or specialty foods, our food-grade borosilicate construction guarantees safety and durability, resisting extreme thermal shocks and acidic substances for long-term reliability.

Detailed Parameters

Product NameSquare Glass Storage Jar with Tempered Glass LidMaterialPremium Borosilicate Glass & Silicone
Available Capacities500ml / 750ml / 1200ml / 1500ml / 2800mlShapeSquare
Temperature Range-20℃ (-68℉) to 400℃ (750℉)MOQ1000 pieces
CertificationsFDA, LFGB, DGCCRF approvedSealing TypeAirtight Silicone Gasket
CustomizationOEM Production (Silicone color & Volume)PackingOpen stock / Color box packing

Key Advantages

Borosilicate Strength

High thermal shock resistance and hardness prevent cracking under extreme temperature changes.

Maximum Freshness

100% leak-proof and airtight silicone sealing keeps food fresh and prevents oxidation.

Food-Grade Safety

Non-toxic, acid-resistant materials ensure no harmful substances precipitate into your food.

Direct Heating

Superior heat resistance allows the borosilicate glass to withstand direct heating applications.

Ultra-Clear View

Transparent glass lids allow instant identification of contents even when stored in drawers.

Easy Maintenance

Smooth glass edges and non-porous surfaces make cleaning effortless and hygienic.

Product Gallery

Management Platforms

OEM Production

Full customization of silicone colors and volume sizes to match your brand identity.

Quality Control

Strict adherence to FDA and LFGB standards ensuring 100% food-grade safety.

Rapid Prototyping

Efficient sampling process for custom borosilicate designs to speed up time-to-market.

Global Compliance

Certified by DGCCRF and international bodies for seamless global distribution.

Packaging Solutions

Flexible options from bulk open stock to premium branded color boxes.

Supply Chain Stability

Consistent lead times and scalable production for wholesale glass distributors.

Investment Return Comparison

FeatureStandard Soda-Lime GlassPremium Borosilicate Glass
Thermal ResistanceLow (Prone to cracking)Excellent (Up to 400℃)
Chemical StabilityModerateHigh (Acid & Alkali resistant)
DurabilityFragile / StandardHigh Impact Strength
ClarityStandardUltra-High Transmittance
Health SafetyStandard GradeCertified Food-Grade / Non-Toxic

Frequently Asked Questions

Q: What makes borosilicate glass superior to regular glass for storage?

Borosilicate glass has a lower expansion rate, making it highly resistant to thermal shock. It is stronger, harder, and more chemically stable than regular soda-lime glass, ensuring it doesn't leach harmful substances into food.

Q: Are these square glass jars completely leak-proof?

Yes, the combination of the tempered glass lid and the high-quality silicone sealing ring creates a 100% airtight and leak-proof seal, ideal for liquids and moisture-sensitive dry goods.

Q: Can I use these containers for hot food or heating?

Absolutely. Our borosilicate glass can withstand usable temperatures ranging from -20℃ to 400℃, allowing for direct heating and extreme temperature transitions.

Q: What customization options are available for OEM orders?

We offer professional OEM production where you can customize the silicone seal colors and the specific volume capacities to meet your market needs.

Q: Are the materials used in these jars safe for long-term food contact?

Yes, our products are 100% food-grade and have passed all main food security tests, including FDA and LFGB certifications, ensuring no toxic substances are present.

Q: Why choose a square design over a round one?

Square jars are designed for spatial efficiency, allowing them to fit snugly in drawers and cabinets without wasting gap space, while maintaining a modern and sophisticated look.

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