Automation usually replaces jobs and this would be one in particuar! This athletic young man at Flagstone Winery, above the open-top fermenter tank, is really earning his pay today! He is using a stainless steel plunger, with two large plates attached near the bottom, to &quot;punch down the cap,&quot; which is winery parlance for breaking up the &quot;cap&quot; of floating grape skins, extracting more color and tanins, and exposing the fermenting wine below to additional oxygen. A classic technique entailing a great deal of exertion. (Don&#039;t fall in!)