Chapter 22 covers waters, non-alcoholic beverages, wine, beer and ethyl alcohol. Two thresholds govern most of it: undenatured ethyl alcohol of 80% vol or higher falls in 2207, below that in 2208.
The most-missed boundary is not an alcoholic one. Pure fruit juice stays at 2009, in Chapter 20; it moves to 2202 once sugar is added beyond taste correction, or once it is diluted. Water and ice put up for medical use belong to Chapter 30, not here.
Every number opens on the lines beneath it, down to the ten-digit classification number.