Saturated Steam/Vaccum Pasteurization equipment Pasteurization and sterilization of Nuts, Seeds, Dry Fruit, Herbs, Spices, and Botanicals Napasol supplies pasteurization and sterilization equipment suitable for the treatment of low moisture foods such as nuts, seeds, herbs, spices, botanicals and dry fruit. The batch process which combines steam and vacuum is very effective in eliminating pathogens and spoilage microorganisms insuring both food safety and improved shelf life.