How to Dry Pepper/Dehydrate Pepper in a Dehydrator

Jul 16, 2021

Introduction to pepper：

Pepper grows in the tropical area with annual precipitation of 2500 mm, and it needs a period of dry and hot interval in the middle of growing period. Pepper grows in shady woods. Slow growth, heat resistance, cold resistance, drought resistance, wind resistance, shear resistance, easy transplantation, not waterlogging resistance. Fertile sandy loam is the best soil for cultivation, with good drainage and illumination.

Pepper drying process：

Drying is an important step to make pepper seasoning. The shape of pepper fruit is very small, and impurities are easily produced in the process of picking and sun exposure, or uneven drying leads to moisture and mildew of pepper, which affects the quality. The purpose of using the heat pump dryer is to make the pepper accept the circulating air flowing evenly in the closed drying room. The intelligent temperature and humidity control device in the drying room receives the instruction to carry out the accurate temperature and humidity treatment, and take away the water in the pepper fruit in time. The drying temperature is 50 ℃ - 65 ℃, and the drying is carried out in stages. When the black pepper changes from greenish yellow to dark brown, the drying is thorough and uniform, And the water content is controlled within 12%.
The technology of white pepper is more complex than that of black pepper, which needs soaking and peeling. To pick a good ripe pepper ear, first soak it in flowing water for about 10 days, or even longer, until the pulp decays, then rinse it with force, or use auxiliary tools to remove impurities such as skin, flesh and stem. The main purpose of soaking in flowing water is to keep the white pepper white and fragrant after drying. The purpose of white pepper drying is to make the moisture content of white pepper from 40% to 60%, and control the moisture content within 12% after drying. Although the higher the temperature is, the faster the drying speed is. In order to unify the volatile oil characteristics and drying efficiency of pepper, the range of 50 ℃ - 55 ℃ in the middle and low temperature is appropriate, and the drying time is about 10 hours, which is equivalent to using the sun for 5 days. The difference between the two is that the more evenly dried pepper is, the more sufficient it is, and the longer its storage period is. After the pepper is baked, it is cleaned and stored in vacuum.

Recommendation of pepper 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.