I have brewed 2 Milk stouts recently for the first time. Both FGs are 3pts too high. In the Beersmith settings for Lactose I have checked the Not Fermentable box, but still I am out with my FGs.
Now, I have just been playing with the settings for Lactose, if I change the Yield from 76.10% to 100% my Estimated FG goes up 2 pts, leaving me a lot more happy with a 1pt diff.
So, my question is, should the Yield be 100% for Lactose?? I've also got to ask, why does the Yield affect the FG when "Not Fermentable" is checked?? Surely Not Fermentable means no yield and the yield should be ignored, changing it should not make any difference, but it does.
If not, then have others experienced higher than estimated FGs with Milk Stouts? Is the Lactose making the yeast struggle and give up early? I have pitched plenty of yeast. 1 pkt Fermentis S-04 for an estimated 5.5% beers, that both ended at 5.1%.
Now, I have just been playing with the settings for Lactose, if I change the Yield from 76.10% to 100% my Estimated FG goes up 2 pts, leaving me a lot more happy with a 1pt diff.
So, my question is, should the Yield be 100% for Lactose?? I've also got to ask, why does the Yield affect the FG when "Not Fermentable" is checked?? Surely Not Fermentable means no yield and the yield should be ignored, changing it should not make any difference, but it does.
If not, then have others experienced higher than estimated FGs with Milk Stouts? Is the Lactose making the yeast struggle and give up early? I have pitched plenty of yeast. 1 pkt Fermentis S-04 for an estimated 5.5% beers, that both ended at 5.1%.