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You were probably always told never to put metal in the microwave, and if you did, you might have seen sparks (hopefully no explosions or fires). Now, we have metal food containers made for the microwave!
These food containers were specifically engineered to reduce the risk of electrical arcing, which causes sparks. Sharp edges, gaps, and points make it easy for electrical charge to start sparking, while rounded edges and smooth surfaces help reduce that risk.
Different manufacturers may use different approaches for the exact shape and thickness of the container, but most are made of stainless steel. And although these are considered “microwave-safe”, that doesn’t mean you can heat them however you want. Usually there are specific instructions on the maximum microwave heating time and wattage.
I found several different microwavable metal food containers on the market and listed them below, along with a breakdown of their features.
Bentgo MicroSteel Heat & Eat Container
- Comes in 2 cups, 3 cups, 5.5 cups, and 8.5 cup sizes
- Maximum of 10 minutes in a 1,000 watt microwave
- Made of patent-pending MicroSteel 304 (18/8) stainless steel
- Silicone lid microwavable with steam vent open
Bentgo MicroSteel Lunch Box
- 5 cup capacity
- Removable divider inside
- Made of patent-pending MicroSteel 304 (18/8) stainless steel
- Silicone lid NOT microwavable
6-Piece Misenware Mixed Set
- Comes in small, medium, and large sizes
- Only offered in multi-packs
- Maximum of 10 minutes in a 1000 watt or 5 minutes in 1100 watt microwave
- 1.0 mm thick 304 (18/8) stainless steel
- Silicone-rimmed tempered glass lid fits on all sizes
- Measurements engraved inside
Klean Kanteen Food Boxes
- Comes in 2 snack sizes and 3 meal sizes
- Multi-size packs available
- Removable divider inside
- Maximum of 5 minutes in a 1000 watt microwave
- 90% recycled 304 (18/8) stainless steel and silicone
- Lid and inner divider NOT microwavable
Stainless Steel Food Containers with Glass Lid
- Comes in 20oz, 28oz, 30oz, 42oz, 56oz, and 60oz sized boxes and 8oz, 20oz, 37oz, and 60oz sized bowls
- Only offered in multi-packs
- Removable divider inside
- Maximum of 10 minutes in the microwave
- 304 (18/8) stainless steel
- Semi tempered glass and silicone lid
Just Cook Stainless Steel Microwavable Food Container
- 5 cup capacity
- Single or double pack available
BLACK + BLUM Meal Prep Box Set
Stainless Steel Food Containers with Glass Lid
- Comes in small, medium, and large sizes
- Multi-size pack available
- Both bowl and box shapes
- Maximum of 2 minutes at a time in a microwave up to 1,000 watts
- 304 (18/8) stainless steel
- Plastic lid microwavable with steam vent open
