Oatmeal Milk Stout FG

[Biergarden]

Greetings Collective,

I made an oatmeal/milk stout (7% and 7% of the grain bill) with OG of 1.084 post addition of the lactose. It's been in the fermenter since August 23rd and actively fermented for over a week.
I think the FG is 1.034 with serial readings over the last 4 days.
I don't think that is an accurate account since the sugars in the lactose are contaminating my readings. I think the oatmeal might be playing a role in the misreading too.
Any thoughts on that?

 

[bobeer]

sounds about right to me. Lactose doesn't ferment out so you'll always end up with a higher FG vs a beer with no lactose. Oatmeal just adds mouth feel and shouldn't add much unfermentables to raise the FG.

Does the beer taste alright? How much lactose did you put in?

 

[bobeer]

If you can post your recipe we can figure out what the OG would be pre lactose and base the FG on how much lactose you added.

 

[CascadesBrewer]

Sounds like you added about 1 lb of Lactose to a 5 gal batch. If that is the case, it would add 8.6 gravity points that will not ferment (the info I see says 1 lb of Lactose in 1 gal yields 1.043). That would mean that without the Lactose, your gravity would be around 1.026, which does not seem to far out of line for a fairly big stout.

 

[Biergarden]

Sounds like you added about 1 lb of Lactose to a 5 gal batch. If that is the case, it would add 8.6 gravity points that will not ferment (the info I see says 1 lb of Lactose in 1 gal yields 1.043). That would mean that without the Lactose, your gravity would be around 1.026, which does not seem to far out of line for a fairly big stout.

Thanks for the input. I'll make note of it and play around with Beer Smith as well.