Originally Posted by msh227
Brewed a batch of Irish Red this morning and had some gravity issues I don't understand.
Recipe was pretty simple and my beer software had a preboil gravity of 1.046... My measurement was 1.042. The post boil gravity was suppose to be 1.056. I measured 1.040. Both samples were 70*
No clue why this happened. Pulled the sample when filling carboy thought it wasn't mixed well so I pulled another samplethis evening after it was mixed and had same reading. Maybe it settled from this morning to tonight?
Well, one of the measurements was wrong. This is no way a preboil gravity could have been 1.042, and the post boil 1.040.
If both samples were cooled to 70 degrees before reading them, then one or the other was just wrong.
The post boil gravity reading has to be higher than the preboil gravity- it just has to.