I found out it does not work with baking trays but excellent with glass
Have used this for baking cookies and don’t notice any difference - except that you don’t throw it away at the end! Won’t be buying anymore cling wrap or baking paper!
So I followed the instructions and washed it and stored it on my baking trays. Used them a few times and still learning but the meringues today just came off beautifully, i have learnt to stretch it out from underneath to loosen whatever I've baked on it.
This is a great alternative to cling wrap. It works well to wrap up sandwich etc.