Gelatine

Gelatine meaning in winemaking

Gelatine is a natural protein-based fining agent derived from animal collagen, primarily used in winemaking to clarify and stabilize wine by removing excessive tannins and negatively charged phenolic compounds. When added to wine, gelatine carries a positive charge that attracts and binds to negatively charged particles such as harsh tannins, anthocyanins, and other phenolic substances that can cause astringency or bitterness. This process, known as fining, helps improve the wine’s mouthfeel, color stability, and overall balance. Gelatine is particularly effective in red wines where tannin management is crucial for achieving desired texture and drinkability. The typical dosage ranges from 0.1 to 3 grams per hectoliter, depending on the wine’s composition and desired outcome. After binding with unwanted compounds, gelatine forms larger particles that settle to the bottom of the tank or barrel, allowing for easy removal through racking or filtration. While highly effective, gelatine fining requires careful monitoring as over-fining can strip beneficial compounds and reduce wine complexity. Modern winemakers often use gelatine in combination with other fining agents like egg whites or bentonite for optimal results.