EPT™ Horizontal Drying Technology For even, consistent & safe dehydrating Biochef\'s patented Enzyme Protection Technology (EPT™) system ensures maximum retention of nutrients and enzymes, while ensuring food is dried evenly and consistently. With three rear fans and heating systems, efficient horizontal drying removes water from food with a continuous circulation of thermostatically controlled warm air throughout the cavity. This ensures food is dried uniformly and thoroughly and with no moisture spots where dangerous mould or bacteria can grow. Ideal for dehydrat...