Délestage, often translated as “rack and return,” is a red-wine fermentation technique in which the fermenting liquid is drained from the tank, the grape solids are allowed to settle or compact, and the wine is then returned over the cap. The process wets the cap, promotes extraction and can help manage the distribution of skins and seeds during fermentation.
During active red fermentation, the free-run wine is drained from beneath the cap into a separate vessel. The cap of skins and seeds is left in the fermentation tank and may be allowed to drain or settle. The wine is then pumped or returned over the solids, wetting and mixing the cap. Some producers separate or remove a portion of seeds during the process, but this is not an automatic result of every délestage operation.
Délestage helps manage contact between fermenting wine and grape solids. It can encourage colour and tannin extraction, aerate the must at a controlled stage and improve cap wetting. The effect depends on timing, frequency, grape variety, temperature and the condition of the fruit. It is not inherently softer or gentler than other cap-management methods.
Délestage drains and returns the liquid. Remontage pumps wine from the bottom of the tank over the cap without fully draining the vessel. Pigeage physically pushes the cap down into the fermenting wine. Each method manages extraction differently.
Example: a winemaker may use délestage during Cabernet Sauvignon fermentation to wet the cap and manage extraction before pressing.
Chef’s note: délestage is a cellar technique, not a guarantee of a particular tannin profile. Extraction depends on the full fermentation regime and the fruit.
This term is one of hundreds covered in depth across OCS courses, learning paths, and 1-on-1 coaching with Chef Eric.
