Adjusting for temperature on 60F hydrometer?!
Answers: My hydrometer balling/density/alcohol% is calibrated at 60F.If my grape juice is at say 70F what figures should I be looking for to start fermentation ? I'm not sure I understand the tables in the websites!
TEMPERATURE CORRECTION CHART
Temperature
of sample (°F) Reading Correction
50° -.0005
60° .000
70° +.001
77° +.002
84° +.003
95° +.005
105° +.007
I used to ferment wine many years ago. 70F will be fine to start fermentation. The hydrometer is used to measure the specific gravity and two readings should be taken. One at the start of fermentation and the other at the end. The difference between the two is used to calculate the alcohol content. If your hydrometer is calibrated for a reading at 60F add 0.001 to specific gravity and make a note. Do the same at the end.
Hope this helps.