Bonda Stainless Steel 316 Insulated Lunch Box Multi-layer Large Capacity Portable Thermal Food Container for Office Workers and Students 24-Hour Heat Preservation with Handle

All steel parts in contact with food, no plastic contact with water or food

Double-layer vacuum insulated inner bowls prevent flavor mixing and maintain temperature

Independent sealed compartments for rice, vegetables, soup, and fruits to preserve original taste and nutrition

All-steel contact with water and food ensures health safety, no plasticizers or harmful substances

Seamless 316L stainless steel inner bowls for easy cleaning and no residue retention

Outer bucket made of seamless SUS304 stainless steel, corrosion-resistant and easy to clean

Split charging design allowing food containers to be used separately and flexibly

Anti-scalding double-layer design for safe handling

Large mouth opening for easy serving and cleaning

Portable design with widened and thickened nylon carrying strap for easy transport

Food-grade silicone sealing ring for leak-proof performance

Preheating recommended by pouring boiling water into outer bucket and food containers for 6-10 minutes to enhance heat retention

Heat retention time approximately 8 hours at 73°C (warm food) and up to 16 hours at 48°C (hot porridge/soup) under standard conditions (2.9L container, 25±2°C environment)

High-temperature vacuum sealing technology ensures superior insulation and freshness lock

Designed for pregnant women and infants with high material standards

No plastic contact with food or water, eliminating plasticizer risks

No welding seams in inner bowls, preventing bacterial growth and ensuring hygiene

Suitable for storing and carrying rice, vegetables, soups, and fruits separately

Ideal for maintaining food temperature and freshness during travel or work

Easy to clean and maintain due to seamless stainless steel construction

Manual measurements may have slight deviations

Actual heat retention times may vary depending on food temperature and volume

BANGDA triple insulation lunch boxes combine advanced stainless steel materials (316L and SUS304), multi-layer vacuum insulation, and thoughtful design to provide a healthy, safe, and efficient solution for fresh keeping and heat retention. The all-steel contact with food and water ensures no plastic contamination, making it ideal for sensitive users including pregnant women and infants. Multiple capacities and compartment options offer flexible usage for various meal types.