I found this product by accident when I was looking for small resealable sandwich bags to protect my mobile phone, cigs etc at Glastonbury. These are much cheaper & better than commercially available boil-in-the-bag meals. It's the one on the left - Baco Cook-in Bags. Anything can be put in one of these, sealed and then used as a boil-in-the-bag meal. You could even freeze home-made curry, stew etc to take away with you. Now that I've used them over the last few days I can recommend them. I took some canned food with me and emptied the contents into these; it heats quickly (about 5 mins) and with no mess to clean up (if you eat out of the bag with a spoon ). Even the manufacturer's website has no mention of them so they may be fairly new. So for those who no longer have access to rat packs (or miss home cooking on exercise) and want cheap, hot meals when they are hiking, camping etc get yourself down to Tesco (other supermarkets are available) and have a look for these near the sandwich bags section. The bags can also be used as roasting bags or in a microwave but I haven't tried that.