What’s better to use? A refractometer or hydrometer? Which is easier?
Any good brands you’d like to recommend?
A hydrometer will be your primary tool for OG and FG measurements. A refractometer is a nice way to get quick measurements. But there have been numerous accounts where the conversion of a refractometer reading to a hydrometer reading for beer did not work as expected.
I use a refractometer to keep track of gravities during the brew day but use a hydrometer for the OG measurement of the produced wort and during the fermentation process.
Kai
My refractometer works well for OG but you need to convert FG readings using a formula and I find it’s still off. So I use a hydrometer for FG readings.
Dave
What’s OG and FG?
Sorry, I’m a total newbie at this still. I’ve only brewed three batches so some of the terms are still unfamiliar to me.
Original **G**ravity and **F**inal **G**ravity - specific gravity is what you measure with a hydrometer, before you pitch your yeast we call it OG, at the end of fermentation we call it FG, but at any point it can be called SG.
How to Brew. Read it, learn it, love it.
Also just to be clear, you don’t actually need to measure alcohol content, right? That would require a gas chromatograph. Estimating alcohol content using specific gravity readings can get you pretty close, though.
Lol. Yes I did know that you measure the sugar, not the actual alcohol.
I’ll check that book out. I’ve been reading through the Brooklyn Brew Shop’s Beer Making guide. Pretty decent overview of basic concepts.
So if I were to get just a refractometer, I would be able to at least ballpark my ABV?
Sweet! That makes it a heckuvalot easier.