BLACK + BLUM Lunch Box | Microwave Safe Stainless Steel | 900ml

I love these tupperware boxes. Stainless steel, can go in the over or microwave to reheat, no toxic chemicals or microplastics going into my body. The only downside is that they are a little expensive. They seal, and are leakproof as far as my experience goes. The lid is only secured with a gasket and an airtight lock, so I wouldn't shake them about upside down, but very very good. They're so good that I have a new found love and confidence in this brand that I never knew before, and am looking into more of their products.

I recently purchased the BLACK + BLUM Microwavable Stainless Steel Lunch Box, and I couldn’t be happier! From the moment I opened it, I could tell this is a high-quality product. The stainless steel feels solid yet lightweight, making it super easy to carry to work or outdoor trips. The vacuum-sealed lid is a game-changer - no leaks, no spills, and it keeps my meals fresh all day. I love that it’s microwave, dishwasher, oven (lid excluded), and freezer safe. Cleaning is effortless, and it holds up beautifully over time without bending or scratching. The design is sleek and modern, and the stackable feature is perfect for storing multiple containers neatly. It’s ideal for meal prep, office lunches, or even picnics. I also feel great knowing I’m making an eco-friendly choice by ditching single-use plastics. Overall, this lunch box is practical, durable, and stylish - a must-have for anyone who enjoys fresh, healthy meals on the go. I highly recommend it!

It's a good size and lid seems to stay on when being transported. However, I used it in the microwave and wasnt aware it was to be in there max. 2 mins and I had it in for 3 mins. It was v hot to the touch and the lid had popped open at the corner. There was an odd taste to my food as well - some sort of slight chemical taste, which was a bit concerning but I suppose it may have been due to fact that I'd microwaved it too long! Will come back and report the next time I microwave and make it less than 2 mins to see if it has the same taste.

Great for lunch, the perfect size, love that you can lock it too so the lid isn’t coming off, I’m yet to put anything warm in or likely to leak so unable to comment on that yet. But easy to clean and good sleek looking design

Nice container - seems leakproof - but not very good for heating up in microwave - takes very long and of course the steel container gets v hot.

Fantastic lunch box, much lighter than glass and better for us than plastic (even PBA-free). Add 20% to your "cooking" times and be careful handling it; it's metal, so it does get hot. Enjoy.

Looks great and doesn't leak. No problems with using in a microwave but it does get very hot. Really good alternative to plastic.

These are perfect for my long waits in hospital for snacks.

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Top qualité

I bought two of these for my kids. At school, they have a microwave. I don’t want to use plastic containers, and they are not allowed to use glass containers. It is a good size for their lunch and fits in their lunch bag, but after maybe 10 uses in the microwave, they started to spark. There are no dents on the container. One of the containers has a noticeable scorch mark. See picture. The other one doesn’t. I’m not able to recreate the sparking in my own microwave with both, but the school ones sparked on both. Amazon replaced the one with the scorch mark, but my kids are now afraid to use them. Update - 2025-03-18 I've convinced my kids to try it again, and I think I know why it sparked. It's my kids doing. Since it's a small microwave, the container needs to be in the center of the turntable. If it gets too close to the walls, it will spark. I'm thinking my kids just threw the container in the microwave at it got too close. It hasn't sparked since, and they have been using it for several months now.

Excellent mais très cher

Was hesitant to put this in the microwave at first but it seems fine. I just make sure not to set the microwave timer more than 1 minute each turn. Container is light so its good alternative to my glass lunch containers. Not sure what's the grade of the stainless steel in this product is but there's now some discolouration inside the containers after I stored dishes with vinegar.