Og readings

[Spikemead]

Silly question
Should it be taken when the wort is ready to take yeast eg at 22c ish or is it ok to take before its get down to temp?

 

[Yooper]

22C is on the warm side, but that would be ok. Most hydrometers are calibrated for 15.6C. I normally add the yeast at about 18C, which is a much better fermentation temperature and gives the best tasting beer.

 

[Spikemead]

Cheers I'm just splitting my wort into 2 demijohns so wanted to make sure first

So I will take 2 ogs just in case