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https://www.bzypetfood.com/products/freeze-dry-duck-liver-cube.html
Freeze Dry Duck Liver Cube
It's vacuum freeze-drying, where fresh meat is put in a -36C vacuum environment to freeze rapidly and sublimate into water until dry. The freeze-drying process preserves the nutrients in the ingredients and kills any microbes that might be present. Truly zero add, safe, delicious and healthy pet snack.