To make wine, first press the grapes. You press grapes by putting them in a large vat (a sort of barrel) with a hole at the bottom to let the juice run out, and then getting in the vat and stomping the grapes to squish them and let the juice out, as these Egyptian men are doing. Then you put the wine in wooden casks or clay pots and add yeast and let it ferment for several months (or sometimes years).