20. The effervescence of an alcoholic beverage must be declared on the label and appear immediately preceding the designation, in characters of the same size and colour, and be described in the following terms:(1) “crackling” if the alcoholic beverage contains between 1.5 to 2.5 volumes of dissolved carbon dioxide per volume of finished product;
(2) “sparkling” if the alcoholic beverage contains between 3.5 to 5.5 volumes of dissolved carbon dioxide per volume of finished product.
The word “perlant” may be used if light cider contains not more than 1 volume of dissolved carbon dioxide per volume of finished product and is characterized at opening by the appearance of a few bubbles indicating light effervescence.