Brewing with Spices
Submitted by KurtS on Tue, 05/13/2008 - 15:05.
Anybody out there tried brewing with rosemary, juniper, or sumac? If so, how much did you use and when? I am modifying a recipe for steam beer and wanted to give it a little extra something. My initial thought was to add a small amount of dried rosemary (perhaps an ounce) to the boil with my last batch of hops (10 minutes). I have heard that boiling sometimes deadens the flavor of herbal additives, so I was also considering putting the rosemary directly in the primary fermenter.
Same questions for juniper berries and sumac.
Thanks for your help.

Just my .02, I'd avoid
Just my .02, I'd avoid Rosemary unless you use it in minute amounts -- it's powerful. I had a BW made with it years ago that was a better marinade for lamb than drinking. Unfortunately, it was comercially made so I have no idea how much or where in the process it was used. Good luck!
- D
Although I have never brewed
Although I have never brewed with any of the ingredients you mentioned, I have seen some of them mentioned in passing in brewing texts. For the rosemary, I have read that herbs and spices should not be boiled for more than five minutes for the very same reason you mention. I probably wouldn't add these to the primary fermenter. Try "dry-hopping" your herbs instead in the secondary. You could also probably make a tincture (set the herbs in grain alcohol or vodka for a week or two) if you are worried about sanitation. As rosemary is a potent herb, I would guess that an ounce is probably more than enough, but I am sure you could either search for quantitative recipes online, or try adding a little bit to a steam beer that is already made to get a feel for how much flavor you might want, then multiply by your batch size to get the overall quantity.
I have seen a few recipes for a Finnish beer called Sahti, which uses juniper. Maybe if you research a few of these types of recipes you could find the proper quantity of juniper to add to your beer.
I have no idea on how or why sumac would be used in beer. All I know is that I think I am allergic to the poisonous variety, so good luck on that.
I hope this helps.