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Author Topic: Dry Irish Stout - Guinness clone  (Read 65 times)

DuaneG

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Dry Irish Stout - Guinness clone
« on: September 27, 2019, 02:15:16 PM »
Been brewing for 2 years now. Started with Coopers extract stuff, and this year have been doing all grain with BIAB (7 batches of BIAB so far).
I did a Dry Irish Stout yesterday. With this recipe, I mashed with about 4 gallons of water at 60min (started at 170F and then of course temp. went down). I then sparged about 4 gallons of water (170F). Even did a mashout for 15 min @ 170F. Pre-boil was 6.85 gallons.
I got an OG of 1.043 (post boil) which I thought was low (Temp. was 20.5C, which is temp I pitched yeast – little high temp).
I was thinking maybe my hydrometer was off, as i did a hydrometer test in water at 60F, and it was 1.003.
What do you think? Do you think maybe my OG should be higher with ‘perhaps’ faulty hydrometer, and initial OG reading at 20.5C?

combat32

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Re: Dry Irish Stout - Guinness clone
« Reply #1 on: September 27, 2019, 08:58:35 PM »
maybe your mashing efficiency was low?
what was your expected Gravity supposed to be?
i have been mashing for 75min for awhile now, but i use a grainfather and recirculate.
my efficiency is around 75-80% most of the time.
can you post your full recipe, i can punch it in and see what i get for a OG.
do you take a preboil gravity? some people adjust their boil time with that.
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