Term (also stirring, agitation) for various processes in winemaking in which the fermenting wine is mixed with the help of stirring plates or mechanical devices. In the past, this was done with so-called stirring chains. The wine is stirred, for example, during lees storage in order to distribute the yeasts (French: bâtonnage). This is also common in barrique ageing, when fortifying a wine or when blending wines. The process commonly used in red wine production during mash fermentation is described under over-pumping.
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