"rom the cooking environmentnote: sometimes called vacuum cooking, although vacuum cooking refers more often to vacuum flask cookingvacuum flask cookingcooking food inside a removable pot sealed inside a vacuum flask for prolonged heating with minimum heat lossfryingCooking food in hot oil or fat, e.g. pan frying, deep fryingFrying inside a frying pan or wok, or on a griddle or grill pancooking" . . . .