Chemicals: nm pl. In addition to exogenous chemical yeasts with all flavors (there are more than 200), some 300 oenological treatment chemicals are authorized at European Community level, each country also having its own complementary list. Here is just an excerpt mentioning the most common:
Ammonia
arsenic
hydrochloric acid
Sulfur dioxide * (and other sulfites E220, E221, E222, E223, E224, E226, E227, E228)
Anhydri ...
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