Gallise

I weigh the must by Oechsle's must scale, and add white sugar to it until it weighs 100 degrees, then I gallise it by one-fourth of water in which sugar is dissolved to the same standard of the must.

Source: wiktionary

Potato-sugar contains impurities of sulphuric acid, iron sulphate, and lime. [...] Wines "gallised" with potato-sugar are consequently pro tanto poisonous, and the use of such sugars in brewing becomes a matter of questionable permissibility.

Source: wiktionary