I make homemade Dog Treats. What would you recommend to add to my recipe to allow them to last longer ?

I make Homemade Dog Treats at home. Sometimes they don't last too long, but I want to use all-natural ingredients! What do you recommend ?

Chef's Answer ~ Beyond using the refrigerator, freezer and devices to eliminate the air in a container of dog treats, the best way to make your treats last is by using a preservative. I would recommend checking out the preservatives at K9 Cakery.com. They also have all kinds of cute tools for making and decorating dog treats.

I hope this helps, Happy Dog Treat Baking! :)