I have a few Volac grade A 100ml pipettes and I have checked them against a scale accurate to 0.01g.
For the calibration of my hydrometers, this is accurate enough and I have convinced my local Customs of this.
I am allowed a bit of grace as the beers are bottle and barrel conditioned, so a little fermentation goes on in the final container providing
condition.
I will mark a beer at 4.5% ABV when it goes out but it will be a bit sweet in the bottle so it will be about 4.6% if you store it away and allow the
condition and flavours to develop. |