BLACK + BLUM Microwavable Stainless Steel Lunch Box | Multi-Function, Vacuum Sealed Container for Healthy Food | Portable and Stackable Food Storage for Office and Outdoor | 40 oz / 1200 ml

Very impressed . Worked in microwave (in 2 minute bursts though) ;)

pricey but the quality lives up to it! sleek and cool design, lightweight too. love it :)

I have been looking for an easy clean yet stylish lunch box for work . Perfect Size for a decent lunch to fit. Not too heavy.

Very pleased with this container- i keep my little doggies raw food in this as keeps it very chilled in bottom of the fridge. It’s frozen food & keeps frozen all day long! So if needed for lunch no worries as it remains very chilled & added bonus of being microwaveable. Very pleased with this and the lid has a good seal.

It works in the microwave and is airtight. It has a vent, but the price is high for what we get.

I have been using for about 4 months, it’s next to perfect for portioning food in the fridge, and you can take out and microwave directly, just make sure to open the little red airflow vent in the cover. Had to buy 1 more for office lunch.Only issue is cleaning the little airflow vent if oil gets in there is a bit of a struggle to get all the grease out. But it’s totally worth it, just avoid filling to the brim.

I had my reservations about this box, but we really like using it. The lock system is very straight forward and we haven't had an issue with leakage so far. My husband prefers it over the glass versions for work lunches as it has good volume and is quite light to carry.

Seal is spill proof, nice and sturdy while also being aesthetic.

We are pleased with the quality and size of the product on our goal to reduce and eliminate our plastic food storage, cooking utensils and lunch containers . My husband has not complained about the reheating results and the cleaning is easy. I would recommend this product. No leaks, sleek appearance and sized well for a good lunch.

I'm genuinely shocked that there aren't more reviews for such a well-designed and useful meal prep container – this thing is the real deal. I haven't tested the microwavability (although I've read up on the tech and it makes sense to me, it still feels like a crazy thing to try to do with stainless steel - maybe one day), but these things are virtually indestructible (unlike even the best glass or plastic containers), and yet can still go straight from the freezer to the oven up to 428 F (220 C) according to their support, which is perfect for my needs.If you're looking to get away from plastic for leftovers or meal prep, but want something that isn't prone to chipping or breaking (unlike glass), or randomly exploding (tempered glass), then stainless steel is the way to go. I bought these at the same time as a bunch of comparable stainless steel meal prep containers from Bentgo (essentially the only other company you can get "microwavable" oven-safe containers from in the US without relying on sketchy 3rd party sellers or importers) to compare, and by a landslide the Black + Blum containers came out on top.Pros:1. Build quality is pretty good - the stainless steel feels great and has good fit and finish, and the lids are sturdy and well-built2. Lids are really easy to remove (as long as you unlock the valve in the lid) - you just need to hold down on the exposed metal lip of the container below, while pulling the lid off, and it doesn't take too much force to do. I find these lids much easier to remove than most comparable airtight food containers (unlike the Rubbermaid Brilliance, for instance). They're also not too hard to put back on, other than the 1 con below.3. Containers stack pretty well when filled with food4. They come with a 2 year warranty!5. The lids are well and truly leakproof, unlike their competitionCons:1. It's a bit annoying to have to remove the silicone seal from the lid for cleaning, and you do need to remove it to be able to clean the lid. I would've preferred a design like the Rubbermaid Brilliance where the seal is attached to the lid but still easy to clean. The lid in general has a good number of nooks and crannies (thanks to the vacuum seal) that make it trickier to clean than I'm used to.2. Because the base of the container is so rounded, it can wobble around and tip over a lot when you put the lid on if you don't hold it down in the right way.3. Also because the base of the container is so rounded, the containers can jiggle and wobble when stacked on top of each other. It doesn't seem like enough to make the stack unstable, but it is enough to be weird and annoying.4. I really wish the lip was bigger (like the Bentgo Heat & Serve containers) – it would make it so much easier to take the lids off. It's still not too difficult even with the narrow lip on this container, but it could've been made so much easier.Considerations:1. I'm not sure how well the plastic lids handle heat since I haven't dared to try microwave the containers yet.2. I don't know if these are still the best oven-safe stainless steel food storage on the market in countries outside the US – from my research, you're much more spoiled for choice on this front in parts of Europe and Asia.