I have used the silicone liners for years. I have 4 of them with 5 baking sheets. ( I make many dozens of cookies each Christmas). I love them. I may wipe them down every few batches but basically don't clean them until I am done with the entire baking spree. Then I use a soapy rag with the liner on the pan and they clean up nicely and I store with paper towels between the liners on one of the sheets. My baking pans look like new and I have been using these since 2000 or before.