Whole mice are what cats were breed and evolved to eat. They are the best food for a feline. This canned food is ground up whole mice fur and all bank on it. Pressure cook mice, put the product in a grinder and evaporate off some of the liquid to make a slurry then can that slurry cats will go nuts for it they have the instinct to know that’s exactly what they should be eating. This guy should make a fortune doing what cats do naturally. I have a couple of cats feral on my land they leave carcass on the deck as gifts in exchange for the water bowls I leave out for them. That keep the rats and mice out of my steel buildings and garage where there blankets and heat lamps are at. It’s a fair trade they get inside digs and I get pest control it’s why humans made them in the first place. Domesticated cats are a human invention we literally made them from wild stock.