A multi-stage separation heat-exchange type drying system is provided. A plurality of first heat exchange blocks of the first main body are installed to be spaced from each other at a predetermined interval, and first vortex generating blocks are installed between the first heat exchange blocks. Also, a plurality of second heat exchange blocks of the second main body are installed to be spaced apart from each other at a predetermined interval, and second vortex generating blocks are installed between the second heat exchange blocks. The heat exchange occurs in a manner that the first heat exchange blocks and the second heat exchange blocks corresponding to each other, positioned up and down, exchange a heat medium therebetween.

Provided is a simple method for drying food and a drying device that can maintain color, scent, and flavor of the food without deteriorating original nutrition value of the food and prevent deterioration of the food due to reproduction of bacteria and food produced by such a method and a device with respect to agricultural product such as grains, beans, potatoes, vegetables, mountain vegetables, mushrooms, nuts, fruits, and herbs or marine product such as seaweeds and seafood. Food of agricultural product or marine product is placed in a dry warehouse for drying the food, upper gas and lower gas in the dry warehouse are circulated by a duct fan provided to the side in the dry warehouse, and the food is dehumidified and dried under the atmospheric pressure and at the temperature of 60 C. or lower and the relative humidity of 60% or less to obtain dried food.

A method and system for dry aging the meat product uses a 12 volt DC powered portable unit comprising a plastic box configured for housing the primal cut of meat and placed inside a refrigeration system. The box is further equipped with an internal and external blower to control the air circulation and humidity respectively inside the box. A germicidal UV light disposed within the plenum in front of the internal blower to provide germicidal action on the dry aging meat product. A PCB controller placed on top of the box embedded with software and a humidistat to control the humidity inside the box and maintaining a closed micro environment to dry age the meat product with desired texture, flavor and tenderness.

Food processing methods and associated apparatuses are disclosed herein. In one embodiment, a food processing method includes heating a meat product in an oven to a pasteurizing temperature of the meat product followed by drying the meat product at the oven temperature that is below the maximum oven temperature of the processing cycle. In another embodiment, the method includes heating a meat product in a continuous belt grill, followed by drying the meat product in a temperature/relative humidity controlled oven. By breaking the food processing method into at least two phases, the method can result in a shorter processing time with better control of the process end points.

A system to control the conditions of an aging room, also known as a conditioned space, for products in which independent feedback loops control the dry bulb temperature and the dew point while controlling the difference between the vapor pressure in the room and the vapor pressure of the products being dried, thereby controlling the amount of and rate of water or water vapor loss of the products and, therefore controlling its quality, the system also including target controls, a thermoelectric cooler and lighting controls.

A process for dry aging meat uses an enclosed, atmosphere controlled room with forced circulation and ultra-violet lighting, containing an anti-microbial meat aging rack with a salt brick stack covering one wall. Humidity is controlled to maintain between approximately 60 and approximately 65%. Temperature is controlled to maintain between approximately 32 degrees Fahrenheit and approximately 33 degrees Fahrenheit. UV lighting, some of which produces ozone, controls odors and sanitary conditions for the dry aging process.

A process for dry aging meat uses an enclosed, atmosphere controlled room with forced circulation and ultra-violet lighting, containing an anti-microbial meat aging rack with a salt brick stack covering one wall. Humidity is controlled to maintain between approximately 60 and approximately 65%. Temperature is controlled to maintain between approximately 32 degrees Fahrenheit and approximately 33 degrees Fahrenheit. UV lighting, some of which produces ozone, controls odors and sanitary conditions for the dry aging process.