Looking around the web there seems to be a lot of mention of the use of the iodine (starch) test at the end of your mash. Is it actually useful (i.e. is it reliable)? There have been times when I ...
Do you just mix them with the grains or cook them first to get them gelatinized? What are the pros and cons of each method? What portion of the fermentables can be in flake form?