High Fg

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kenny10
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High Fg

Post by kenny10 » Sun Sep 26, 2021 12:43 pm

I brewed a milk stout 3 weeks to the day and it fermented at 20 oC during that time. I used 500g of lactose and mashed at 155….I took a gravity reading today and it’s at 1.030…that’s 39% attenuation and a 2.6% beer. My OG was 1.050…I knew the FG would be higher but DAM…I was shocked….left the hydrometer in my fermenterand will check the next couple days….to see if it drops…..could lactose have that much affect on FG to where it’s done

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amartin
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Re: High Fg

Post by amartin » Sun Sep 26, 2021 1:26 pm

How much lactose (as a % of grist) and what yeast?


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kenny10
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Re: High Fg

Post by kenny10 » Sun Sep 26, 2021 1:35 pm

9,8%….I used k97….I always get 75-80 %attenuation with it

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amartin
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Re: High Fg

Post by amartin » Sun Sep 26, 2021 1:38 pm

Yeah, that seems like it shouldn’t make that big a difference. Have you tried warming it up some?


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kenny10
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Re: High Fg

Post by kenny10 » Sun Sep 26, 2021 1:39 pm

I’m going to whirl fermenter a bit to arouse the yeast and will increase temp to see if this works….

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