Graham cracker?

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Roguefiend
Roguefiend's picture
Graham cracker?

i recently made a stout with graham cracker 4 lbs for 10 gal batch. I had a problem hitting my final gravity. It stalled out about 1.040 and started at 1.089. 1 suggestion I had for this was it was because of the graham crackers and preservatives in them?I think I underpitched as I used 2 smack packs per carboy. Anyhow my question is; Is there another way to impart graham cracker? I was gonna use graham flour but am afraid of a stuck sparge. Maybe just wheat malt, molasses, brown sugar and vanilla? Anyways Iā€™m not sure and thought that I may look hear for some insight. Thanks.