Cream shortening and sugar; beat in eggs, pumpkin and water. Sift together flour, baking powder, baking soda, salt and spices. Add to pumpkin mixture. Stir in nuts. Pour mixture into greased wide mouth pint jars, filling half full. Bake at 160ºC or 45 minutes. When done, remove jars one at a time; wipe sealing edge with paper towel and screw cap on tightly. The heat will vacuum seal the jar and the bread will keep up to 1 year. Makes 8 pints.