You don't need to peel the grape juice, but the grapes must be cleaned.

the skins and seeds of grapes can be removed, provided that you have washed the skins of the grapes very clean. Grape skins are the easiest part to contact with pesticides, so washing is an important step after buying them, whether they are juiced or eaten directly.

Cut the raisins one by one with scissors and soak them in salt water for about 1 minutes; Add a proper amount of flour to the basin, and knead the raisins with flour, with gentle movements; The thoroughly washed raisins are pedicled and soaked in warm water; When the grapes are soft, they can be put into the juicer and squeezed directly.

whether the seeds in the grapes should be removed is also a question that many people consider. In fact, people who have tried grape juice will know that the grape seeds are very broken and soft after being crushed, and it is not nutritious to extract the taste of the juice without removing them. Moreover, it is very troublesome to remove the seeds from the grapes. If every grape has to be peeled to remove the seeds, it is recommended that you eat it directly. In the process of removing the seeds, the juice of the grapes is also lost, and the pulp will be polluted. Eating grapes often is good for health and longevity. Wash the peel when juicing grapes, and then juice the peel and pulp together.