I have a (2.5 gal) stout recipe that looks like:
5 lbs 8 oz base malt
5 oz black patent
3 oz roasted barley
2 oz carafa iii
2 oz caramel 120
My question is - if I substitute the 8 oz base malt for 8 oz of flaked oats for some added body - will it affect the fermentability and final gravity of my wort?
I like this recipe as it is, but I think it would be even better with a little extra thickness.