Rhymenoceros
Well-Known Member
I thought that all 3 of my first batches had stuck fermentation, my gravities were around 1.02. It was frustrating, but I just calibrated the hydrometer, turns out it was 4 points off.
every one should calibrate their hydrometers with distilled water. If you get a reading for example of 1.002 (at the calibration temp., usually 60 deg.), subtract 2 from all future readings.
Edit:
For those of you who want to know the technical basis behind it read this BYO article:
http://***********/stories/projects...rate-your-hydrometer-and-fermenter-techniques
By only doing a single point calibration (i.e. if your hydrometer reads 1.004 in distilled water, you then subtract 4 from all future readings) we are assuming that the scale inside the hydrometer is correct (not elongated or compressed) if you want to get completely accurate about it read the a fore mentioned article.
every one should calibrate their hydrometers with distilled water. If you get a reading for example of 1.002 (at the calibration temp., usually 60 deg.), subtract 2 from all future readings.
Edit:
For those of you who want to know the technical basis behind it read this BYO article:
http://***********/stories/projects...rate-your-hydrometer-and-fermenter-techniques
By only doing a single point calibration (i.e. if your hydrometer reads 1.004 in distilled water, you then subtract 4 from all future readings) we are assuming that the scale inside the hydrometer is correct (not elongated or compressed) if you want to get completely accurate about it read the a fore mentioned article.