It doesn't and we had no idea of that when we started using it several months ago. We just noticed that after two weeks the milk was still good unlike the store bought.
Last year I was visiting a friend of mine in Georgetown, Texas and we went to a dairy there and I bought milk and butter. We got hooked on the milk and butter and for months I looked for a place closer to buy milk. I found
Stryk Jersey Farm and the
Jersey Barnyard online. We drove to the Jersey Barnyard and they were out of caps and couldn't sell milk. Later we drove to the Stryk Jersey Farm and bought milk but both dairies were a really long drive away (about 2 hours) which is not very close to us. Then several months ago I heard about Valenta Jersey Farm south of El Campo, Texas. We were so excited to find raw milk 35 minutes away.