This 1941 photo shows an employee at the big Tillamook cheese factory working on a vat of future cheese. Rennet was a key ingredient in creating the cheese. As Linda Kirk, who was a guide back when visitors could walk around the production floor, wrote in the book, Cheese War, “Rennet causes the milk to coagulate. If anyone asked about rennet, I was ready to say that the factory used rennet made from the stomachs of veal calves. If no one asked, I would not elaborate on rennet.” Today, artificial rennet is used. (Photo credit: Old Tillamook Times)
