With harvest well underway wineries across the country have already finished fermenting many new 2026 wines. At this stage in the winemaking process is when "Produced by fermentation" is reported. That's a TTB term which comes directly from a line on the TTB Report of Wine Premise Operations. (5120.17 or the Old form # 702) Listing gallons as "produced by fermentation" gives a couple of key benefits to wineries, as pointed out in the short video. Go HERE for more info on our TTB harvest compliance training course.