The National Center for Home
Food Preservation details the procedure for preserving tomato sauce, but you can also just pop the sauce in the freezer (try putting it in airtight bags on cookie sheets to freeze it in a flat, space - saving shape).
The book cover such topics as: History of
Food PreservationDefinitions of Various
Food Preservation MethodsFood Safety and Safety PrecautionsSourcing Tools, Equipment and FoodAltitude AdjustmentsWater Bath Canning
Details & Pressure Canning
Details...