Work is called on account of rain...so I have no excuse not to send a quick post.
I just dried up some raspberry sheets and wanted to show it. What got me thinking about it was that it looks exactly like the ones I saw in the Victoria Museum of history in the local First Nations section. Berries were dried like this then stored in cedar boxes for use during the year. Few people think of the First Nations as being into food storage. We have this picture of them just being nomadic, hand to mouth, hunter gatherers. Not so. There were many Nations and thus many ways of doing it. In the East, they farmed. In the West, they had trade routs. On the prairies...well, there are no prairies if the first nations hadn't made them and kept them up through yearly burning ...but that is some other post.
I dried these without the oven or an electric dehydrator...and that is why I am bringing this up. I started them in the car on a sunny day. When the weather went bad, I moved the cookie trays near the wood stove. Ta da. I wont be doing it on wax paper again as the moisture went into the paper and made it difficult to peal. Ill try plastic next time (but I wont be putting that over the stove. Melted plastic anyone). Traditionally it was done on a cedar board. No idea how they kept it from sticking.

When the canning lids are all gone and the electric dehydrators are all sitting out on the scrap pile for recycling....much of our food storage will look these sheets. Just food for (storage) thought...and why I was practicing it.