At what temperature do I roast chocolate malt and other beer malts?

you don't need malt for beer so probably any beer reallyMalted barley is required to make beer. If there is no malt, it is not beer.

Like other macrobreweries in America Strohs is made with some adjunct ceral grains such as corn. It reduces the cost of brewering and lowers the flavor profile.

All beer has some malt content

Budget beers usually are 50 percent malt and 50 percent corn or rice, while premium beer composition may be as high as 70 percent malt

Malt adds extra sugar which can give the beer a higher alcohol content. That's why malt liquor is so alcoholic.