Let Me Make This Clear; Racking, Fining & Filtering.

Chapter Twelve, Part Seven.
Once wine has fermented in a barrel, or been transferred into a barrel for aging from a fermentation vessel made of stainless steel, cement, or your bathtub, sediment will gradually form and settle to the bottom. If this thick, burgundy-hued sludge isn’t separated from the wine it could end up in your wine glass. Then it would only be a matter of time until Riedel introduced a line of spoons to go with their stemware.

To get rid of sediment and other unwanted byproducts, most wine is racked, fined and filtered before bottling.

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