Alcoholic drink which contains a very high level of alcohol and "does not contain any added flavoring" is commonly called a neutral spirit. Generally, any distilled alcoholic beverage of 170 US proof or higher is considered to be a neutral spirit. Most yeasts cannot reproduce when the concentration of alcohol is higher than about 18%, so that is the practical limit for the strength of fermented drinks such as wine, beer, and sake. However, some strains of yeast have been developed that can reproduce in solutions of up to 25% ABV. Shot sizes vary significantly from country to country. In the United
Alcoholic drinks in China liquor, the seed mash described above can also be made to be eaten or drunk as a sweet dessert. Traditional Chinese medicine frequently employed alcoholic drinks (associated with yin) and alcoholic drinks were likewise used as medicine. Alcohol including extracts of plants, herbs, animal parts, or minerals are not as common as they once were but may still be encountered. One example of such a medicinal alcoholic drink is realgar wine: consumed during the Dragon Boat Festival, realgar wine consisted of "huangjiu" mixed with realgar, an arsenic sulfide also used as an insecticide. It appears in the Chinese legend of