Odd, mine would not show the same reading 2 consecutive times and I have read others with the same issue.
Yeah, that happens with hot wort as it evaporates. The reading goes up. Pretty much true of any refractometer as far as I can tell. But since the initial reading matches my hydrometer I don't worry about it. Believe me, I've always been very skeptical of any refractomer which is why I held off getting this one for along time. It seems to work better than any of the 3 handhelds I have.
Edited by denny, 27 June 2022 - 12:20 PM.