These are potatoes we've dehydrated. One is sliced, the other mashed. Both were cooked first so all we need to do is add hot water and spices to taste. The sliced potatoes may be cooked as scalloped potatoes or fried once rehydrated. The jar of dehydrated mashed potatoes were about 4 to 5 cups of fresh mashed potatoes before drying them. The slicer makes the pieces more uniform which makes them easier to dehydrate. All potatoes were from last year's crop and stored in the root cellar.