good2go too Square Storage Container - Clear, 500 ml

I use in the microwave, so far not in the oven. The magical thing is the way they flatten for storage. My Sistema boxes always slid off each other crashing aroud the cupboard. IO tried to buy some more before Christmas but Amazon had run out.

I previously bought 4 of them but they got old and the seal was a bit loose so the lid started to come off during transit. but these new ones are great!! no leakage!!

To be honest I really wasn't sure these would work. I'm used to plastic containers and obviously things don't end well when they meet anything hot so the idea of putting something that looks like a butty box in the oven was completely alien. However it's probably the best thing I've bought in ages. As well as preparing food etc for myself I need to make and store meals for my mother and this product has removed the worry that she may use the wrong cooking method. If she puts it in the oven it won't melt and can be used straight from the freezer. When not in use it collapses down for easy storage. I can wholeheartedly recommend this product. I've bought several different versions so I'm well covered for everything from picnics through to lunchtime and quick meals. Go for it!