If I were asked to convince someone about the benefits of sous vide cooking, I might suggest they make this recipe. Pork tenderloin cooked in a sous vide water bath is an excellent example of all the benefits of sous vide cooking – prevent over-cooking, give you moist results, and pack a lot of flavor into a meal.
Pork tenderloin is a lean piece of pork that is very easily over-cooked. Because it is relatively small, just a few minutes can take it from being perfect to being dry. When you cook it in a sous vide water bath, however, that thin margin of error expands and you can let it cook for as little as 1½ hours or for as long as 4 hours and still have a perfectly cooked piece of meat. That gives you the comfort of time – you don’t have to be ready for dinner at a specific time based on when the pork is going to be finished AND you don’t have to start dinner at a precise time in order to put dinner on the table right at 7pm. Let your mind worry about side dishes, dessert, kids homework, or whatever else might trouble you. The pork is going to be just fine and will be ready when you are.