Although (sweet milk) tea is a popular beverage in Bhutan, but some people prefer Suja also which is made of butter known as butter tea mostly served on all social occasions. Regarding water, you should better not drink tap water, but choose mineral water. During trekking the water is boiled and therefore safe to drink. Regarding alcohol, the chang (local beer) and arra (a spirit distilled from rice, maize, wheat or barley) are common and very much favored. They are easily available in bars, except on Tuesday (dry day).