This nice husband would like to help his wife bring out her inner Thomas Keller. He asks a lot of questions:
My wife just got back to Dallas from Ohio. She was treated to many great homecooked meals. She told me she especially enjoyed sous vide cooked pork chops. How important is the absolute vacuum? It would be easy to get most of the air out of the bag without expensive, special equipment. Are there cook books for amateurs that give sous vide focus ?