Maybe I am using the "green box" Potential Alcohol Conversion calculator wrong, but I don't get consistent results.
Example:
Using the SG and %ABVC options
Enter 1.147 OG
Enter 1.005 FG
This calculates %ABV to 18.03
Now, Type 18.02 into %ABV. I'd expect the OG to be recalcuated but the change to be so small as to not make a difference. But the OG changes to 1.137. That's a substantial change. By entering %ABV, I do not get an OG of 1.147 until I enter 19.1.
Am I doing it wrong?
Example:
Using the SG and %ABVC options
Enter 1.147 OG
Enter 1.005 FG
This calculates %ABV to 18.03
Now, Type 18.02 into %ABV. I'd expect the OG to be recalcuated but the change to be so small as to not make a difference. But the OG changes to 1.137. That's a substantial change. By entering %ABV, I do not get an OG of 1.147 until I enter 19.1.
Am I doing it wrong?