IRF Scale

A scale created to indicate how dry or sweet a riesling tastes. Created by the International Riesling Foundation (IRF) in 2007, the chart (which appears on the back label of many riesling wines globally) shows a spectrum from dry to medium dry to medium sweet to fully sweet. It then pinpoints where that wine falls. The IRF scale is based on sophisticated technical guidelines, including the ratio of sugar to acid in the wine. Wines with very high acid, for example, may still taste dry even though they have some amount of residual sugar.


Get WineSpeed

Join tens of thousands of other wine lovers. Get each week’s edition of WineSpeed delivered to your inbox every Friday. It’s fast. It’s free. It’s the smartest way to stay up to speed on wine.
Email address
First Name
Last Name
Other Way You Heard About Us
Be sure to check your inbox to confim your subscription.