How to Dry Squid/Dehydrate Squid in a Dehydrator
Introduction to squid：
Squid is an animal of the mollusk phylum Cephalopod, Coleoptera, Ten-brachis, Pipes, eye-opening suborder. The body is cone-shaped, pale in color, with hazel spots, large head, 10 tentacles in the front, and triangular fleshy fins at the tail end, often swimming in groups in the ocean about 20 meters deep. Each hundred grams of dried squid contains 66.7 grams of protein, 7.4 grams of fat, and a large amount of carbohydrates and inorganic salts such as calcium, phosphorus, and sulfur. The protein content in fresh squid is as high as 16-20%, and the fat content is extremely low, only about 4% of general meat. Therefore, the calories are far lower than meat food. For people who are afraid of fat, eating squid is A good choice. There is a higher content of taurine.
Squid drying process：
Squid has a relatively high moisture content, about 75-80%. During the entire drying process, about 60% of its original body weight must be dried and evaporated, and most aquatic products are heat-sensitive substances.1. Temperature control
Drying is generally required to be carried out at a relatively low temperature, and the temperature is set to about 35°C-45°C. In order to avoid the drying temperature is too high, the protein denaturation, the rapid growth of bacteria, and the destruction of the quality of drying. At the same time, avoid rapid drying, which will cause the squid surface to crust, which will not facilitate the migration of moisture inside to the surface, resulting in false drying. Therefore, the drying speed of the heat pump dryer must not be too fast. Set the temperature at a low temperature node around 40°C. Use a negative pressure fan in a closed insulation room to increase the circulating air volume and wind speed inside the room, and dry uniformly and slowly. .
2. Wind speed control
While maintaining a large circulating air volume and a high wind speed, the squid can fully contact the air, and the water vapor evaporated from the squid is taken away under the action of the circulating wind, and then the water vapor is condensed and filtered out of the room through the unit.
3. Control of humidity
Because squid cuttlefish not only has a large amount of water, but also contains water in fat and oil, dehydration is more difficult than other types of materials. Controlling its dehydration speed and moisture removal is one of the important factors that determine the quality of squid drying. The dehydration speed The mastery of the moisture removal rate is particularly important for maintaining the color of the dried seafood. Drying squid cuttlefish should prevent moisture from staying on the surface of the squid body, causing poor moisture drainage and causing bacteria to grow.
Precautions:
Take a 10P heat pump dryer as an example. With a rated power of about 10KW, the heat output of the machine can be as high as 35KW, and its energy efficiency is 35/10=3.5. The temperature adjustment is mainly controlled by the internal and external condensers, and the wind speed adjustment is controlled by the inverter. The relative humidity is obtained by using the ratio of the air flow through the evaporator. Following the above drying process principles, this can achieve the effect of natural drying of squid. Usually 4-5 catties of wet squid get 1 catty of dried squid. The dried squid is clean, reddish in color, and white and tender.
Recommendation of squid dryer/drying machine
Commercial 100-3000kg/h large amount of dehydration wide application and easy operation
Heat pump drying machine use the principle of inverse Carnot cycle. It absorbs low-temperature heat energy in the air, which becomes high-temperature heat energy after efficient heat collection and integration by the heat pump system, and is transported to the drying room for cyclic heating and drying of materials.It refers to exhausting the hot and humid air in the drying room directly to the outside of the drying room through dehumidification device, and then replenishing natural fresh air.
Hot air circle drying machine belongs to high temperature heat pump unit. Its working principle is: the working fluid of the heat pump is compressed by the compressor, becomes high temperature and high pressure gas, enters the condenser, condenses and liquefies the heat, and is used for air heating in the drying room. The moisture in the material is vaporized and evaporated by the form of hot air, and the evaporated water vapor is discharged by the moisture discharge system, thereby achieving the purpose of drying the drying material.
Squid drying video：
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