chaptalization
noun/ˌʃæptəlaɪˈzeɪʃən/ · /ˌt͡ʃæptəlaɪˈzeɪʃən/
Etymology From Chaptal + -ization, after Jean-Antoine Chaptal, who developed the process.
1
The addition of sugar to grape juice in the fermentation of wine. Usually done if the grapes are thought to lack enough natural sugars for the desired alcohol content.