I am in the process of putting together a first aid / trauma kit for my vehicle and in this kit i want to include some sort of burn dressing since there aren’t space for my normal burn treatment (1-2 500ml. bags of saline and a sprayer). I live in Denmark and the climate here is very varying with hot weather in the summer and freezing temperatures in the winter. I want to be able to store this kit in my vehicle and forget about it until the day I might need it. My question is therefore, how well does these Water-Jel dressings store in a vehicle in cold (freezing) and hot weather? And do they burst and start to leak when the freeze?