Where does the deposit in white wines come from?

We usually expect a glass of wine to be absolutely crystal-clear. So some people may be a little surprised to find a grainy or powdery residue when they look at the bottom of a bottle or pour the last glass. Where does this deposit come from? Can it damage the taste of the wine or have a harmful effect on the drinker’s health?

We take a closer look at the question in this episode of EXTRA BRUT– our educational web series about wine, with gourmet provocateur Nicolas Rieffel. The goal is to answer all the questions you have ever asked about wine, in record time…

The answers are given to us courtesy of the Moon Chasers, members and employees of the Bestheim winery.