Ymer Stainless Steel Lunch Box Microwaveable Fresh-Keeping Bento Box for Office Workers [Small Visible Glass Lunch Box]

Microwave Usage Instructions

• Only heat one lunch box at a time in the microwave to avoid damage
• Remove silicone exhaust valve before heating
• Cover with lid (do not tighten), open exhaust valve to allow steam release
• After heating, close exhaust valve and lid properly
• Failure to follow instructions may cause product damage and buyer assumes responsibility

Thermal Insulation Performance

• With thermal bag:
• ≥60°C for 4 hours
• ≥3°C for 3 hours
• Without thermal bag:
• ≥40°C for 4 hours
• ≥6°C for 3 hours

Suitable for

• Various foods including meat dishes, fruits, vegetables, rice, soups, milk, juice, coffee, cola, soy milk
• Refrigerator safe for rapid cooling and freshness preservation

Dimensions (approximate)

Additional Features

• Portable with optional thermal bags (small sets with 2 or 3 bags, large sets available)
• Strong leak-proof performance due to silicone sealing ring and exhaust valve
• Antibacterial 304 stainless steel ensures safe use
• Suitable for microwave reheating and freezer storage
• Easy to clean and durable for everyday use

Safety Notes

• Always heat one lunch box at a time in the microwave
• Do not heat multiple boxes simultaneously
• Use the exhaust valve properly to avoid pressure build-up
• Buyer assumes responsibility for damage caused by improper use