What are common methods for crushing grapes in order to extract their juice?

The most common techniques for squashing grapes in order to extract their juice are as follows:

1) destemming and squashing: the grapes are first destemmed (i.e. the stems are eliminated) and after that crushed;

2) whole-cluster pushing: the grapes, with stems still connected, are put into a press and carefully squashed in order to draw out the juice;

3) foot-stomping: the grapes are positioned into a container, such as a vat or tub, and squashed with bare feet;

4) maker crushing: the grapes are placed into a squashing device, which uses steel or nylon rollers to squash the grapes. https://tastykoreachannel.com/?p=637sites