How to Dry Grape/Dehydrate Grape in a Dehydrator
Introduction to grape：
Grapes can be eaten raw or made into raisins and used for making wine. The roots and vines are used medicinally to relieve nausea and fetus. The minimum temperature required for grape growth is about 12℃-15℃, the lowest ground temperature is about 10℃-13℃, and the optimum temperature for flowering is about 20℃.
Grape processing steps：
Washing and decontamination generally use 1.5-4.0% sodium hydroxide solution to wash away the wax and harmful microorganisms attached to the peel. At the same time, it can be disinfected, and the peel will appear small cracks to facilitate the evaporation of water and promote drying. After mixing 0.6 g of potassium hydroxide and 6 ml of 95% ethanol, add 3.7 ml of ethyl oleate, shake well, then add 1000 ml of 3% potassium carbonate aqueous solution, and stir while pouring to obtain an alcohol-soluble oleate emulsion.
Grape drying process：
The pallet loading capacity is 14-20kg /㎡, and the initial temperature is set to 45℃ to 50℃, and the final temperature is set to 70℃ to 75℃; The drying time is approximately 42-60 hours. In the drying process, the system dehumidification amount to be large, dehydration rate of 70%. It stays green when it's all dry. Dry moderately fleshy raisins with no juice exudation when pressed by hand. The moisture content is 15-17%, and the drying rate is 3:1-4:1.
Recommendation of grape 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.
Grape drying video：
Previous post:
RELATED PRODUCTS
Hot News
-
Hemp Drying Machine Delivery To France
Our French customers have been in the hemp business for many years and have their own plantations. We learned through the Internet that we are engaged in the manufacture of drying equipment and consulted with us on hemp drying. The customer requires that the drying output of hemp is 300kg/h, the heat source uses an air energy heat pump, the heat can be recovered, the installation should be simple, and one container is finished.
-
8 Sets Flowers Dryer Tested Well In Client's Site
This time, we have equipped 8sets flowers dryer of model BX-15m*2.2*4layers. Drying material: flowers Output: 120 tons/day Drying machine: continuous multi-layer mesh belt drying machine Drying time: 1-2 hours
-
Henan Baixin Export 6 Sets Leaf Dryer To American!
In recent days, we have continuously exported 6 dryers to the United States! Customer drying material: leaf material Drying temperature: strict drying temperature and humidity requirements. The drying temperature needs to be kept at about 30-50℃, and the temperature is moderate, which can well retain the effective ingredients, which is conducive to the later material extraction and reprocessing...
RELATED NEWS
-
Coconut Dryer Machine Malayalam
If you want to dry coconuts, you need a professional coconut dryer machine. So what are the coconut dryer machines? How to choose the right dryer machines? Next, I will share with you three types of coconut dryer machines, coconut drying room, mesh belt coconut dryer machine and coconut dryer all-in-one machine. -
Garlic Drying Methods
After drying, the garlic not only retains the original taste and nutrition, but also is more convenient to store and carry. What kind of method can achieve such drying effect? Let's explore this issue together.
There are two ways to dry garlic. One is to do dry garlic at home, and the other is the large quantities of the garlic industry to produce dried garlic. -
Copra Drier
At present, copra drier can be divided into three types according to the output: Continuous Mesh Belt Copra Drier with output of 300-2000kg/h; Heat Pump Copra Drying Room with output of 100-5000kg/batch; and All-in-one Copra Drier with output of 100-1500kg/batch. In addition to different output, these three driers are also different in terms of heat source and working principle. Each has its own advantages, the following is a detailed introduction. -
Copra Dryer Price
Under normal circumstances, copra manufacturers dry the coconut before shipping it out. Today I will share with you the professional copra dryer by Baixin Machinery and the copra dryer price. At present, copra dryer can be divided into three types according to the output: Continuous Mesh Belt Copra Dryer with output of 300-2000kg/h; Heat Pump Copra Drying Room with output of 100-5000kg/batch; and All-in-one Copra Dryer with output of 100-1500kg/batch.
