From http://www.twainquotes.com/interviews/ExtractPrivateLetter.html:
Herein Mark lives the elegant life of a man of leisure, cutting coupons, smoking long and strong pipes from morning to night, and drinking lager beer, which he buys by the keg, and often.

- B. Clay Shannon 

    On Wednesday, July 14, 2021, 12:47:54 PM PDT, Robert STEWART <[log in to unmask]> wrote:  
 
 A local craft brewer has asked if Twain had a favorite beer such as Pilsner, ale or dark ale, hefeweisen, etc. Has anyone in the Forum ever noted a Twain mention of a lager or ale he favored? Brewer said there may be an event at a brewpub here in Carson City, Nevada, the city where in 1863 Sam Clemens first used the name Twain to sign a letter to the Territorial Enterprise, and the brewer wants to have an appropriate brew ready for it.