I ordered these because I couldn't easily find small-sized glass containers, and PAL, which I generally prefer, seems to have discontinued them. The containers are of good quality and I consider it very good that they are certified to withstand a wide range of temperatures (unlike PAL which does not certify this). The big negative for me is the closure, as it does not lock, resulting in it opening in my bag the other day. Also, due to the closure, I wonder if it seals airtight and whether the food is kept well.

So far it has turned out very good for me. On the paper inside, it is mentioned that it is suitable for microwave use with the lid on but with the little hole open. At the same time, it is stated that the container should not be placed in the microwave when it is empty.

And yet, with this small hole at the top, it seals airtight. The lid is much easier to wash because you don't need to remove the rubber. I will definitely buy more.

It really seals very well! It has a small hole to seal and close airtight, so you have to open it in order for the lid to open.