Brewing Hydrometer

Brewing Hydrometer

A must-have for every home brewer, this triple scale hydrometer is suitable for use as a beer making hydrometer, or for cider and wine brewing. It’s perfect for measuring fermentation progress and estimating the alcohol content of your brew. Whether you’re crafting a hoppy pale ale, a crisp cider, or a bold red wine, a hydrometer helps ensure consistent, high-quality results every time. We offer three options to suit your needs — including a handy combo pack with a 250ml trial jar for clean, accurate sampling.

What is a brewing hydrometer?

A brewing hydrometer is an essential tool used to measure the specific gravity (SG) of liquids — in other words, how dense your brew is compared to water. In home brewing, this measurement helps you monitor fermentation progress and calculate the alcohol content of your beer, cider, or wine.

This beer making hydrometer is a triple scale hydrometer, meaning it displays three key readings:

• Specific Gravity (SG) – used before and after fermentation to track sugar conversion.

• Potential Alcohol (% ABV) – an estimate of your brew’s alcohol content.

• Brix – a scale used to measure sugar content, often used in wine and cider making.

How to use a Hydrometer

Using a brewing hydrometer is easy once you know the basics:

1. Sanitise everything – your hydrometer, test jar, and any utensils.

2. Draw a sample – take a small amount of wort or brew and fill your test jar.

3. Insert the hydrometer – gently lower it into the liquid and give it a spin to dislodge air bubbles.

4. Take the reading – note where the liquid intersects the scale at eye level.

5. Record your results – take an Original Gravity (OG) reading before fermentation, and a Final Gravity (FG) after fermentation. Use both to calculate your brew’s ABV.

Tip: Read at 20°C for best accuracy, or adjust using a temperature correction chart.

Why use a tripple scale hydrometer?

A triple scale hydrometer gives you more information in a single tool — perfect for beginner and advanced brewers alike. Whether you’re checking sugar content, tracking fermentation, or calculating ABV, it’s an all-in-one solution to keep your beer or wine on track.

Fun Fact: When were Hydrometers invented?

Hydrometers date back as far as Ancient Greece, but the modern brewing version was popularised in the 17th century. Early brewers used them to assess consistency across batches — long before lab testing existed. Today, they’re still one of the simplest and most reliable tools in a home brewer’s toolkit.