This is the first question in most people, when it proposes a fierce believer in sous vide technology. There are millions of answers to this question, I will try to summarize the most common ones!
Why we not searing the meat, before we put it to the sous vide bath??!?!
In fact, we recommend to you to making the crust! Normally, the man throw the meat into the bag, seasons, add some fat, then put it into sous vide bath. Yet the presearing is not a bad idea of a steaks!
Currently, there is no place where you can easily and clearly be the sous vide cooking temperatures to find.
