SUS316 Stainless Steel Airtight Lunch Box | Leakproof Food Container

Richie's SUS316 Stainless Steel Airtight Food Storage Container

Keep your meals fresher for longer with this premium SUS316 stainless steel sealed lunch box. Designed for students, office workers, campers, and home cooks alike, this large-capacity container combines food-safe construction, superior airtight sealing, and incredible versatility — from the freezer to the steamer and everywhere in between.

Made in Mainland China.

Why You'll Love It

• Food-Safe, Non-Toxic SUS316 Steel: Crafted from premium food-grade SUS316 stainless steel that is BPA-free, acid-resistant, and corrosion-resistant. Safe for storing acidic, salty, or pickled foods without any chemical reaction — completely safe for all ages.
• Superior Airtight & Leakproof Seal: Features a food-grade silicone-sealed lid with a pressure release valve that locks in moisture and original flavour, prevents liquid leakage during transport, and extends food freshness more than twice as long as typical plastic containers.
• Wide Temperature Range: Handles temperatures from -20°C to 120°C (-4°F to 248°F), making it compatible with freezers, refrigerators, steamers, and dishwashers — no warping, no damage.
• Effortless to Clean & Hygienic: The seamless, smooth polished interior leaves no gaps for food residue or grease to hide. Rinse quickly by hand or toss it in the dishwasher — no lingering odours after extended use.
• Space-Saving Stackable Design: The flat rectangular profile stacks securely, saving over 60% of refrigerator or cabinet space compared to irregular containers — perfect for organised meal prep and outdoor adventures.

Product Specifications

Perfect For

• School & office lunch preparation
• Camping, picnics & outdoor adventures
• Refrigerator & freezer food preservation
• Meal prep & batch cooking storage
• Takeaway & on-the-go food carrying

Please Note

• Product photos may not reflect actual size — please refer to the specifications table above for exact dimensions.
• Slight colour variation may occur due to different monitor settings.
• Please allow minor measurement differences due to manual measurement processes.

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Learn more: FDA food safety in the kitchen

Frequently Asked Questions

Q: Is the stainless steel lunch box safe for storing acidic or salty foods?

A: Absolutely. The container is made from food-grade SUS316 stainless steel, which is specifically chosen for its superior acid and corrosion resistance. It will not react with acidic foods like tomatoes, citrus, or vinegar-based dishes, nor with salty or pickled items — keeping all your food uncontaminated and completely safe to eat.

Q: Can I use this lunch box in the freezer and microwave?

A: This container is fully freezer-safe down to -20°C and heat-safe up to 120°C, making it ideal for steamers and dishwashers. However, as with all stainless steel containers, it is not suitable for direct microwave use. Transfer contents to a microwave-safe dish for reheating if needed.

Q: How does the airtight seal work, and will it leak?

A: The lid is fitted with a food-grade silicone seal ring and a pressure release valve that creates a secure, airtight closure. This design locks in moisture and freshness while preventing liquids from leaking during transport — making it great for soups, stews, sauces, and other liquid-rich meals when carrying in a bag.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.