Home Brew How To's - Hambleton Bard
Home Brew How To's - Hambleton Bard

What is a hydrometer and how to use it

The homebrew hydrometer is the most versatile instrument you can have in home brewing or professional brewing or wine making. Let's have a look at what it does.

wine making hydrometer

A hydrometer

This is a hydrometer (in a trial jar).

What is does

It will show you the weight of a litre.

You may have seen this instrument before. It is used for checking battery condition in cars, alcohol in wines and spirits and sugar levels in wines. It is all the same instrument, only the weight and the scale differs.

The homebrew hydrometer is graduated in grammes (remember - per litre) and a typical range would be from 980 to 1100. This is what is known as "s.g." or specific gravity.

It is of course unnecessary to use all these digits (1001, 1002 etc) when you could simply state it as 1, 2 etc. Indeed some hydrometers use that type of scale, called the Oechsle scale. What it shows is: The weight difference (from 1000 g) of a litre. So +4 means 1004 g/litre and -4 means 996 g/litre.

There is no difference in principle between this hydrometer and an alcohol meter or a car battery checker - they are all hydrometers and they all check the specific gravity.

Next page: How does the homebrew hydrometer work on wine?

Link to us!

Do you like our products? Please link to us!.

[November 21, 2016] We are now ISO9001
[April 14, 2016] Two exciting types of South African hop pellets.
[November 28] MasterPint beer kits 5 varieties
christmas beer
[October 28] Bulldog Yule Brew now on stock!
Bulldog Brewery
[October 21] Bulldog Micro Brewery starter set, 3 types.
Malt Mill
[October 21] Bulldog Malt Mill now here!