Why do we still use vapor heat treatment if there is vacuum-hermetic fumigation?

Question

Why do we still use vapor heat treatment if there is vacuum-hermetic fumigation?

Answer 1

If you have the investment in one thing and the experience and it works, then that is what you do. If you have to make a choice in one or the other, you have to look at your needs, what you intend to spend, etc. One choice will win out clearly over another depending on the situation. To have a choice is the best one could ask for.

Answer 2

cost.