I searched but did not find an answer.
I have tuna-in-oil and tuna-in-water in foil packages -
I would love to be able to dry tuna. I have a 12 year old American Harvest that works beautifully - except it does not have temperture settings - it just dries at a "warm temperature" all the time. One setting, I guess it would be called.

Might as well ask this as well - can butter be dehydrated?