Destemming - De-berrying - Rebelling - or not.
In viticulture, the stem structure of the grape is technically referred to as the stem. Destemming refers to the separation of the grapes into berries and stems.
Vintners have an ambivalent relationship with stems and stalks. Since these also contain a lot of tannins, they are generally undesirable in white wine production. For this reason, the grapes are destemmed (= separated from their stems), i.e. the berries are separated from the stems and stalks. In red wine production, however, the stems can also add a certain freshness to the wine, so that, for example, gentle whole-bunch pressing is used instead of destemming.
But we'll leave all that to the winemakers and the secrets of cellar work.
After harvesting, destemming is the step that comes before pressing the berries.