Both Fuyu and Hachiya varieties are suitable for dehydration. The Hachiya variety, which is shaped like an acorn, is an astringent persimmon, meaning it has high levels of tannins and are inedible until soft like jelly. However, for dehydrating, select fruits that are still firm with just a bit of give so that they can be easily sliced with a mandolin slicer. After dehydration, these persimmons will loose their astringency and become a sweet treat! The Fuyu variety, shaped like squat tomato or mini pumpkin, is non-astringent and is ripe while still firm and crisp like an apple. Select firm, brightly colored fruits to be dehydrated.