Vinification is the process of transforming grapes or grape must into wine. It includes the preparation of fruit, pressing or crushing, fermentation, maceration where appropriate, pressing, maturation, blending, stabilisation and bottling. The sequence and techniques differ according to grape variety, wine colour, style, region and producer.
White grapes are commonly pressed soon after harvest, and the juice is clarified before alcoholic fermentation. Fermentation may take place in stainless steel, concrete, oak or another vessel. Skin contact, lees ageing, malolactic fermentation and oak maturation are optional choices that influence the finished style.
Red grapes are usually crushed or destemmed and fermented with their skins to extract colour, tannin and flavour. The cap is managed through techniques such as punching down, pumping over or délestage. After maceration, free-run wine is separated and the remaining solids are pressed. The wine is then matured, blended and prepared for bottling.
Rosé may be made by direct pressing, short skin maceration or saignée. Sparkling wine may be produced by the traditional method, tank method, ancestral method or other permitted techniques. Each process affects colour, bubbles, texture and aroma.
Example: red Cabernet Sauvignon vinification generally includes fermentation with skins, cap management and pressing after maceration, while white Chardonnay vinification often begins with pressing before fermentation.
Vinification describes the broader process of making wine from grapes through fermentation and production. Élevage refers more specifically to the maturation and cellar practices between fermentation and bottling.
Chef’s note: vinification is not one fixed recipe. The producer’s choices at each stage determine the wine’s style, structure and suitability for food pairing.
This term is one of hundreds covered in depth across OCS courses, learning paths, and 1-on-1 coaching with Chef Eric.
