Off Grid Home Forums Technical Discussion Freeze drying food Re: Freeze drying food


After a quick read of the wikipedia article on freeze drying I see that food stuff must be quick frozen to between -60f and -110f roughly. I once worked at a tyson chicken production facility. They used large conveyer vegetable freezers to quick freeze chicken parts. They call it IQF Chicken. These freezers were set on -60 and the product entered at around 55 degrees, it remained in the freezer for 10 to 15 minutes I think. Freezing something this fast does not destroy cell structure because no ice crystals form.