How do you freeze dry? A complete process of food freeze drying/lyophilization for industrial scale application. A reference video for investors to build a big freeze dryer plant. Food freeze drying is a golden chance to invest, as there is a huge market. Traditional drying method would be replaced by lyophilization technology in food industry, as the freeze dried product is 100% natural without nutrition lost and without additives and preservatives; Shape, color and flavor almost has no change as original. Freeze Dry is the Best Way to Preserve Food! Complete set of industrial vacuum food freeze dryer machine /equipment will be provided for users in the world.