I noticed black/gray spots in my food. What is this?Updated 9 months ago

The black/gray spots are a reaction of the minerals, sulfur, and copper, that react under heat during the canning process. The heat during the canning process is to ensure the meat is safe to eat, and during this process, the sulfur and copper react which can create black specks. We also add Agar-Agar as a viscosity thickener to form a loaf pate and this can mix with the vitamins creating a dense black spot. These are completely normal and safe for your pet. In the simplest terms, it is simply additional vitamins and minerals which just didn't fully mix in and oxidized during the canning process. This is more likely to occur now as the FDA is mandating higher temperatures for retorted (canned) pet foods. We have also added an additional step of a fine grind for all our vitamins & minerals now as well to help prevent this in the future. Again, this is normal & safe for the pet.