Issue link: http://winesandvines.uberflip.com/i/172581
WINEMAKING table, though Margerum hopes to sell it and move up to a shaker-style table. The Della Toffola destemmer-crusher is mainly used just for destemming; most of the pressing, for both reds and whites, gets done indoors. Margerum aims for restraint on the alcohol front; some lots of Sauvignon Blanc, the biggest production wine, get picked at 18º or 19º Brix, and none of them higher than 23.5º. The various lots of Pinot Gris get whole-cluster pressed; the successive waves of Sauvignon Blanc get increasing amounts of skin contact time, from four hours to an entire day. Margerum's ample supply of small—300-liter, 1,000-liter—variable-capacity stainless tanks, plus some barrels for certain white fermentations, make it possible to handle a dizzying number of small batches and start thinking how to combine them within a few weeks of harvest. General practice is to prevent malolactic in all the whites, unless it's necessary to reduce overly high acidity. Reds go into a room full of open-top fermentors—from 3/4 ton to 2 tons—and get multiple daily punch downs. Target red fermentation temperatures are slightly on the low side, around 80ºF, and most reds are pressed still turbid, slightly sweet and finished off in barrel along with malolactic fermentation. Margerum tries not to use too much sulfur, a goal made easier by generally having high-acid, low-pH wines and by stringent sanitation practices. Our portfolio of services and supplies VA Reduction* 4EP/4EG Reduction* LO-Crossflow Filtration Cold Stabilization Wine pH Reduction without acid addition Oenological Products Yeasts, Tannins, nutrients, etc Trials available Juice/Must Concentration FOSMOS Forward Osmosis pouches Large scale service available Ultrafiltration Heavy press color removal Bitter tannin reduction Lees Filtration Sweetspotter Rental and sales Smoke Taint Reduction* TCA/TBA Removal Alcohol Reduction Ion exchange RO and NF Equipment manufacture & sales *US Patent 7651616 & 7828977 Tel : 800 577 1220 Margerum uses barrels for some white varieties and malolactic fermentation for all white wines. bryan@vafiltration.com www.vafiltration.com WIN ES & V I N ES O CTO B E R 2 0 1 3 49