8Pantry Stuffers Rehydration Calculations Made Easy: Metric Measurements is bound back to back and inverted with Pantry Stuffers Rehydration Calculations Made Easy: U.S Measurements. Everyday use of dehydrated, freeze-dried, and powdered products is made easier with this two in one reference book. Tables for U.S. and metric measurements take the guesswork out of how much water and how much product to add when substituting dehydrated, freeze-dried, and powdered products in your favorite recipes.