Cpt_Kirks

Recipes 

If you have a lot of suspended yeast, like in a wheat beer, can it effect the FG reading?

I just kegged a Dunkel Weiss. I filled a 2 liter bottle and the test jar first.

There is a good bit of yeasty goodness floating around in this batch. It occurred to me that the yeast in the sample might effect the FG reading, and the ABV calculation.

david_42

Recipes 

No, yeast doesn't make any difference. However, failing to de-gas completely will.

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Cpt_Kirks

Recipes 

Well, it sat for about a half an hour in the tube at about 70*. I kept spinning and shaking the hydrometer.

I guess the attenuation is about right. It went from 1.047 to 1.008 in two weeks.