The grape is the fundamental part of the bunch, it is the fruit of the vine from which the wine is extracted. Externally it consists of the skin, not very heavy and voluminous but precious for all the substances contained. Inside there is the pulp, a succulent content that basically determines the volume and weight of the whole grape. Within the pulp itself there are the grape seeds, precious for the reproduction of the plant, but not very useful for the purpose of wine making.