- Joined
- Jun 8, 2016
- Messages
- 1,442
- Reaction score
- 1,263
- Points
- 113
I never have taken first running readings and suspected something like this might be the problem. I guess I can start, just so I have the statistics on my brews. I also suspected I might need to in order to use the function.
The conversion is measuring the sugar in the mash, before sparging, so if you want to know your conversion you need to measure the gravity prior to sparging.
Enter all MASH ONLY liquor for the volume.
Enter the FIRST RUNNINGS ONLY gravity for the gravity.
Correct, enter the water volume used for mash infusions prior to the first runnings. Strike steps, infusions if you do so. Decoctions are going to through it off slightly since you're evaporating the wort some and concentrating the wort into a smaller volume (raising the SG).
The system will calculate sugars left in the mash tun using the grain absorption and dead space.
Devil's advocate question: What if we add simple sugars to the mash? Does the system know enough to compensate for that? Or if we, as some have done, mash in with maple sap?
It shouldn't matter, if it does then that's a bug. Conversion should only apply to mashed fermentables. Anything that's not a grain, or is a late addition, shouldn't affect conversion.