CHANSUNRUN 3-Piece Insulated Stainless Steel Lunch Box Set

Take Fresh, Delicious Meals Anywhere — All Day, Every Day

Meet the CHANSUNRUN Portable Insulated Lunch Container Set — the ultimate meal-prep companion for adults and kids alike. Whether you're heading to the office, a picnic, or a camping trip, this 3-piece stackable bento box system keeps your food at the right temperature and your bag mess-free.

Made in Mainland China.

What's Included

• 1 × Large Container — 21 oz (perfect for mains like pasta, rice, or soup)
• 2 × Small Containers — 15 oz each (ideal for sides, salads, snacks, or sauces)
• 1 × Insulated Lunch Bag — keeps everything together and thermally protected

Why You'll Love It

• 🌡️ Thermal Insulation: Keeps food warm or cold for up to 3 hours at room temperature — triple-layer construction with food-grade 304 stainless steel inside, PU insulation in the middle, and PP plastic on the outside.
• 🔒 Leak-Proof Design: Each lid features a built-in silicone sealing ring to lock in sauces and soups — no spills, no mess.
• 💨 Easy-Open Exhaust Valve: A smart top-lid exhaust valve releases air pressure, so you can always open your container with ease — even after heating.
• 🥗 Stackable & Separate: Three independent containers stack neatly and keep different foods separated — no more flavors mixing where they shouldn't.
• ♻️ Eco-Friendly & Safe: Made with food-grade 304 stainless steel (FCM certified), free from harmful chemicals, and built to last.
• 🍲 Microwave Safe: Heat your meal right in the container — convenient and quick for busy days.
• 🎒 Carry-Ready: Comes with a matching insulated lunch bag so everything packs up neatly for any adventure.

Perfect For

Work lunches, school meals, office breaks, outdoor picnics, road trips, camping, and meal prepping. Sized and designed to suit both adults and children.

Care Instructions

Hand wash recommended for the insulated containers to preserve thermal properties. Lids and silicone rings are easy to remove for thorough cleaning.

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Helpful Resource

For food safety best practices when storing and transporting meals, visit the FDA's Food Storage Safety Guide.

Frequently Asked Questions

Q: How long does the insulated lunch box keep food warm or cold?

A: The CHANSUNRUN thermal lunch box set keeps food warm or cold for approximately 3 hours at room temperature. The triple-layer construction — stainless steel interior, PU insulation layer, and PP plastic exterior — helps maintain your food's temperature effectively throughout the day.

Q: Are the stainless steel containers microwave safe?

A: Yes! The containers are designed to be microwave safe for convenient reheating. The food-grade 304 stainless steel interior is FCM certified and free from high-concern chemicals, making it a safe choice for both adults and kids.

Q: Can I put the lunch containers in the dishwasher?

A: Hand washing is recommended to preserve the thermal insulation properties of the containers and extend their lifespan. The lids and silicone sealing rings can be easily detached for a thorough clean.

Q: What foods can I store in these stackable lunch containers?

A: The three separate stackable containers are perfect for a wide variety of foods — hot meals like pasta, rice, and soup in the large 21 oz container, and sides, salads, fruits, snacks, or sauces in the two 15 oz smaller containers. The leakproof silicone lids keep everything neatly contained and prevent flavors from mixing.