When do I preheat and when do I not? Does preheating matter?

by Dorie Shapiro

Preheating is necessary for some of June's Cook-Programs in the first generation ovens such as Whole Chicken or Lamb Chops.

No preheating is necessary for all of June's Cook-Programs in the second generation ovens. Please preheat the June Oven as you would a regular oven if your recipe calls for it to guarantee best results.