Yes. You can make enough food for a few days, a week, or even a month. Simply multiply your dogs daily feeding amount by the amount of days you want to make and that should tell you how much mix you need or you can take a few lbs of mix, add 2-3x the hot water, and feed your dog their daily amount until you’ve used up your batch. As far as storing , to ensure freshness, rehydrated food can be stored in the refrigerator for up to 7 days and in the freezer for up to 30 days. If the mix is left dehydrated and properly stored in a clean, dry place it will remain fresh for at least 2-3 yrs, since all moisture has been removed from the food through a method of natural preservation called “dehydration” and bacteria can only grow where moisture is present.