As an American larger, was is the main adjunct used to produce Budweiser?
Budweiser:  It is made with up to 30% rice in addition to hops and barley malt. American lager:  As a general trend outside of Bavaria and the Czech Republic where the beers may be firmly hopped, pale lager developed as a modestly hopped beer, and sometimes used adjuncts such as rice or maize – and this was also true in America.
It is made with up to 30% rice