Bentgo MicroSteel Leak-Proof Lunch Box - Microwave-Safe, Oven-Safe, Bento-Style Container with Removable Divider, Airtight Lid, Sustainable Design, Odor & Stain Resistant (Carbon Black)

A simple and useful lunch box. It stores food well and is airtight. I especially like that it's not plastic and I can warm food in an air fryer. It's durable and will last a very long time. I already got a second one.

The lunchbox holds up well. It's durable, and the lid makes a reliable seal. It is a little difficult to remove the lid. With the release valve open, I still have to press it against my body to pry it open, but that's the trade-off of having an excellent seal. The paint does flake off over time with everyday use. Putting in the dishwasher would probably ruin the paint faster, so I always hand-wash it. I don't mind the paint too much; fortunately, it's only painted on the outside, and unpainted on the inside. The divider is a nice touch; it keeps dry items separated. Liquids can still mix between compartments, but it's not a big deal for me. It's a good quality, stainless steel, airtight lunchbox.

These containers are wonderful...until they're not. While they function exactly as advertised, the outer coating of the steel (which I guess is plastic?) peels off after a handful of washes. I bought the stainless colored ones hoping to avoid this problem, but alas, even the stainless ones have some sort of plastuc film on the outside. Two month in, they are unusable. Save your money and do not buy!

Verdict: Stylish, non-plastic, and microwave/oven-safe—great ideas on paper—but in daily use the single removable divider felt limiting, and the rose-gold finish started to come off in washing. We ultimately prefer Bentgo’s multi-container setups for flexibility. What we liked Not plastic: The MicroSteel build is a win for anyone trying to cut down on plastic. It feels sturdy and doesn’t hold odors. Microwave & oven safe (minus lid): Being able to reheat right in the container is genuinely useful for office or school lunches. Leak-resistant lid: With the lid seated correctly, we didn’t see liquid slosh in a backpack or tote. What fell short Color wear: After normal hand-washing and dishwashing, the rose-gold color/finish showed noticeable wear. If the look is a major draw, expect cosmetic aging sooner than you’d hope. Divider vs. true bento: The single interior spacer doesn’t replace multiple compartments. Compared with our multi-container Bentgo box, we had less freedom to separate wet/dry or keep flavors apart. Portioning flexibility: That lone divider only creates two zones, and it can shift. If you pack varied lunches (salad + protein + snack), you’ll likely miss dedicated compartments. Day-to-day experience Capacity is fine for a standard lunch, and reheating is straightforward—just remove the lid. Cleaning is easy, but to preserve the exterior you’ll want gentle hand-washing; even then, our finish still lightened over time. The gasket seals well, but avoid overfilling saucy dishes; as with most lunch boxes, perfect “leak-proof” depends on careful packing. Bottom line If your priorities are non-plastic construction and microwave/oven reheat, the MicroSteel checks key boxes. But if you rely on classic bento flexibility, the single divider is a downgrade from Bentgo’s multi-container options. For us, the finish wear and limited compartmentalization tip the scales toward Bentgo’s multi-container models instead.

I like the fact that this can be used in the microwave. I wanted to get away from reheating stuff in plastic in the microwave when I take lunch to work. Glass is too heavy and fragile. The metal is lighter. It does seem to heat up differently in metal though. But it's just something that you need to learn. It doesn't say on the description, but you shouldn't use this in a microwave over 1000 W. I just reduce the power on the settings and haven't had any issues so far. I can see how it might be a little difficult to open, but that's why I haven't had any leaks so far. Another plus is that metal is so much easier to clean than plastic since plastic is a pain to clean if you have anything oily in there.

This box is great!! I hate using plastic, and glass can get heavy, this is a quality product! LOVE that it can go in the microwave even though it is metal!!!

I like that the container is made of microwaveable stainless steel and that it comes with a silicone divider, but the lid itself is NOT microwave safe and it kinda defeats the whole purpose. It also wasn’t clear in the product description that only the box itself is microwave safe. I kept it as I thought it would be something I could live with, but every once a while I would have to clean up the stains in my microwave from not having the lid on, and it eventually cause me to reach for this lunch box less. And I’m now shopping for a new lunch box where the entire container is microwavable.

After extensive research on stainless steel lunch containers that can microwavable, I landed on trying this one. It was affordable, size seemed appropriate for an adult lunch, and it was stainless steal with no plastic. It works as intended, however, after almost 2 months of owning this product, like the other reviewers reported, the plastic film is coming off. I submitted a warranty claim directly to Bentgo, but will see what happens. I will update this review when I hear back.

It was true to size. Keeps heated meals hot for quite a while, which is what i got it for. Love it. Not the cheapest, but well worth the money as it does what i need it to do.

The black coating goes off in lesss than 1 month not worth the money

excellent product

My kids are using this lunch box for the last 2 weeks and found it very convenient. It has a nice adjustable divider that helps us to pack two different portions and adjust the size based on our needs instead of a fixed one, i wish they get a similar feature to their glass ones as well. We have been bentgo lovers with adults in the house using Glass salad containers and kids using this one. Bentgo is the Apple for lunch boxes truly well thought products.

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