Pretty much the same here: cut to fit 7x9 padded envelope, 1st class letter, a wrung-out, barely damp paper towel just around the bottom couple of inches, ziplock or heavy polyethelene bag.
I think Nick Botner used legal size envelopes. I got stuff from him wrapped in fairly/barely damp paper towel and in a recycled bread bag.
That’s for apple and pear. A friend stores his apple cuttings for months in quart mason jars with a couple of inches of water in them, in the refrigerator .