During transportation, the mulberries should not be piled up, and the dead leaves and dried branches in the fruit ears should be removed as well, in addition, the unqualified fruit grains that are moldy or discolored should be removed.
Those mulberries which is in the similar maturity level should be put in the drying material trays.
Drying can be completed in 18 hours by using an air source heat pump dryer. Generally, every 4 kg of fresh mulberries can be made into 1 kg of dried mulberries.
After sorting the mulberries and removing the impurities, the mulberries shall be put into the material cart.
Each material truck should not exceed 14 sieves, and the sieve layer space should be controlled within about 10 cm. Take the 10P drying machine as an example, the number of material cart shall not exceed 10 to ensure that there is a reasonable gap in the drying room and to ensure there is a passage for hot air circulation.
Mulberries are a type of berries with high sugar content and high water content. The longer shape is composed of small fruit sacs.
The water of the mulberry is difficult to come out, so it takes a long time for drying. At the same time, the drying temperature should not be too high.
If the temperature is too high, it will easily affect the effective content of anthocyanins.