Trusted Brotherhood of Brewers

Within the Moot, Averland, and Stirland, the the Trusted Brotherhood of Brewers, or "Trusties", are guilded brewers who share recipes, herbs, and roots to guarantee that travelers can find tolerable brews wherever their silver mug stamp may be found. Tavern keepers know that the added costs of "trusted" ales and beers are recouped by increased traffic and higher demand for their known-quality wares. The "Most Trusted" (or guildmaster) is Udo Altankard, a dwarf as wide as he is tall, and brewer extraordinaire.

Source

 * : Warhammer Fantasy RPG 2nd ED -- Career Compendium
 * : pg. 213