Industry jargon
…a measuring device for a grape’s sugar content and therefore the wine’s potential alcohol content.
This information helps winemakers to determine when to harvest the grapes. Most of the time, they use refractometers, which calculate the sugar content in grape juice via light refraction. Germany and Switzerland specify must weight using the Oechsle scale. Austria and Italy, on the other hand, use KMW units (Klosterneuburg Must Weight Scale).
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