Do grits/polenta require cereal mash? I think I'll try this out.
The short answer is no.
But just know that corn meal in a mash tun can definitely give you a stuck sparge, and if you use grits, use instant or 5 minute grits.
I used to boil cornmeal or grits in some of the strike water and add cool water until i got to dough in temps. Now I just mix it right in to the mash. But I BIAB, so I never get a stuck mash.
I got most of the information from Palmer's
How to Brew, especially pp. 173-175 (cereal mashing).
As long as the grain is fully gelatinized, the enzymes can get to work and break down the starches into fermentable sugars. Instant grits and flaked corn have been heat treated to a certain point so they can go straight into the mash (milled of course), but could benefit from some pre-mash treatment, such as boiling or a cereal mash, to convert more completely.
To fully gelatinize the starches in regular grits (as well as steel cut oats, milled wheat berries, and all other raw untreated grains, etc.) they need to be cooked first, and a cereal mash will be more efficient. During a cereal mash, a beta glucanase rest helps to break down the beta-glucan and gummy polysaccharide matrix that holds the starch granules, but since corn and rice contain very little protein you can skip the beta glucanase rest for them.
I was wondering the same thing.I read you can get a stuck sparge without the cereal mash,a non issue with BIAB.But I also read you NEED to cereal mash to get the fermentables out(or something to that effect) Does this apply to corn meal as well? Some say you need to do it,some say you don't. Is there a definitive answer?..I cant find one
Corn meal is ground finer than grits, but the starches have not been gelatinized, so yes, a cereal mash is in place.
With corn and rice the risk of a stuck sparge is much smaller since the protein levels are much lower than in barley, wheat, rye, oats, etc.