How to Brew Beer at Home

Brewing beer at home is easiest when you begin with a purpose-made beer kit. The malt extract is already hopped and balanced, so your main jobs are accurate preparation, good sanitation, sensible temperature control and waiting until fermentation is genuinely complete before bottling or barrelling.

Choose Your First Brewing Route

Beer Kits and Equipment for Your First Batch

These live products cover two complete beginner routes, popular lager and IPA choices, sanitation and pressure-barrel serving. Check the individual product and kit instructions before brewing.

Beginner Beer Starter KitA complete equipment-and-ingredients route for a first 40-pint batch. Simply Beer Starter KitAn accessible starter route with several beer styles available. Coopers LagerA popular 40-pint lager-style kit for straightforward home brewing. Muntons Connoisseur IPAA well-balanced IPA-style beer kit for up to 40 pints. Chemsan No-Rinse SanitiserFor sanitising clean equipment that will contact the wort or beer. 23 Litre Pressure BarrelA reusable alternative to bottling suitable beer styles.

Equipment Needed to Brew Beer at Home

• Fermenter: a food-grade vessel with enough headspace for the stated batch size; 25–30 litres suits most 23-litre kits.
• Lid and airlock: useful for limiting contamination while allowing gas to escape, although some bucket lids are designed to sit loosely.
• Cleaner and sanitiser: cleaning removes dirt; sanitising treats already-clean food-contact surfaces. Follow the product directions.
• Hydrometer and trial jar: used to record original gravity, track fermentation and confirm a stable finishing gravity.
• Thermometer: helps you pitch and ferment within the range stated by the kit or yeast maker.
• Long spoon or paddle: for mixing the concentrate and water thoroughly.
• Packaging: pressure-rated beer bottles with suitable caps and a capper, or a pressure barrel intended for homebrew.
• Syphon or bottling wand: enables quiet transfers with less sediment and splashing. Never start a syphon by mouth.

How to Brew Beer From a Kit: Step by Step

1. Read the kit instructions completely. Check the stated volume, whether extra brewing sugar or malt extract is needed, the target temperature and the packaging method.
2. Clean, then sanitise. Treat the fermenter, lid, paddle, hydrometer equipment, airlock and every other item that will touch the cooled wort.
3. Prepare the malt extract. Warm the unopened can or pouch in hot water if directed, then add its contents to the fermenter. Rinse the remaining extract out with hot water.
4. Add the correct fermentables. Some one-can kits require brewing sugar or a beer enhancer; many two-can or premium kits do not. Use exactly what the instructions specify.
5. Top up accurately. Add water to the kit's stated final volume and mix thoroughly. Adding too much water weakens the beer; too little changes its strength and balance.
6. Check temperature and original gravity. Pitch yeast only within its recommended range. Take a sanitised sample and record the original gravity before adding yeast.
7. Add the yeast. Sprinkle or rehydrate it as directed. Close the fermenter and fit the airlock where appropriate.
8. Ferment at a stable temperature. Keep the fermenter away from direct sunlight and large temperature swings. Ales commonly suit moderate room temperatures, but use the actual yeast guidance—“lager” kits do not all contain true lager yeast.
9. Confirm fermentation is complete. Take a hydrometer reading when the kit suggests checking, then repeat it after the stated interval, commonly 24–48 hours. The gravity must be at the expected finish and remain unchanged.
10. Package and condition. Bottle or barrel using the priming quantity and conditioning schedule specified by the kit.

How to Use a Hydrometer

1. Sanitise the sampling tool, trial jar and hydrometer.
2. Take enough beer to float the hydrometer without it touching the base or sides.
3. Spin it gently to dislodge bubbles and allow it to settle.
4. Read the scale at the point specified by the hydrometer instructions and account for temperature if necessary.
5. Record the reading. Do not return the sample to the fermenter; drink or discard it.

Airlock bubbles are not a reliable fermentation test. Gas can leak around a lid, bubbling can slow before fermentation finishes, and temperature changes can move gas through an airlock after fermentation. Gravity readings show what the yeast is actually doing.

Bottling Beer Safely

Use sound, pressure-rated beer bottles. Clean and sanitise the bottles, caps, syphon and filling equipment. Prime only with the quantity stated by the kit or a reliable carbonation calculator, fill consistently and cap promptly.

Keep freshly bottled beer at the kit's recommended conditioning temperature until carbonated, then move it somewhere cooler. Many beers improve after another one to four weeks, while stronger styles may benefit from longer.

Using a Pressure Barrel

A pressure barrel is convenient for bitters, milds, stouts and other moderately carbonated styles. Check the cap seal, tap and pressure valve before filling. Add only the recommended priming amount, keep the barrel warm initially for secondary fermentation, then condition and serve cooler.

A barrel does not replace the need to finish fermentation first. It is also less suitable where very high carbonation is wanted. Never exceed the vessel maker's pressure limits or modify its safety valve.

Beer Kit, Extract and All-Grain Brewing

Beer kits

Pre-hopped malt extract and yeast provide the shortest, simplest brew day. They are the best starting point for learning sanitation, fermentation and packaging.

Extract brewing

Unhopped liquid or dried malt extract is boiled with hops, giving more recipe control without mashing grain. Boil volume, hop timing, rapid cooling and recipe calculations matter, so follow a tested recipe.

All-grain brewing

Malted grain is mashed at controlled temperatures, the sweet wort is separated and boiled with hops, then cooled before fermentation. It provides the most control but requires additional equipment and a longer brew day.

Common Beginner Problems

The airlock is not bubbling

Check the temperature and take a hydrometer reading. A leaking bucket lid can release gas without moving the airlock, while fermentation may be proceeding normally.

The gravity has stopped too high

Compare it with the kit's expected finishing range, verify the hydrometer reading and check the temperature. Do not bottle. Gently warming the fermenter within the yeast's stated range may help; seek advice before adding more yeast or sugar.

The beer tastes sweet

It may be unfinished, under-attenuated or simply young. Check the gravity and kit target. Some malt sweetness is style-appropriate, but packaging unfinished beer is unsafe.

The beer is cloudy

Young beer often needs time. Confirm fermentation is complete, avoid disturbing the sediment and condition it cool after carbonation. Wheat beers and some modern pale ales are naturally hazy.

The beer tastes thin

The batch may have been over-diluted or a kit that required malt extract or enhancer may have been made with plain sugar. Follow the specified final volume and fermentables next time.

Frequently Asked Questions

How long does home-brew beer take?

A kit brew day can take under an hour. Fermentation often takes roughly one to two weeks, followed by at least one to two weeks for carbonation and further conditioning. The kit instructions and gravity readings take priority over a fixed calendar.

How many pints does a beer kit make?

Many standard kits are designed for approximately 23 litres or 40 UK pints, but smaller and specialist kits vary. Use the stated final volume rather than assuming every kit makes the same amount.

Can I use ordinary sugar?

Only where the kit says it can be used. Brewing sugar ferments cleanly, while malt extract or a beer enhancer usually provides more body and malt flavour. Premium two-can kits often need no extra fermentables.

Can I brew lager at room temperature?

It depends on the supplied yeast. Some lager-style kits contain an ale or hybrid yeast intended for moderate room temperatures; true lager yeast normally needs cooler fermentation and longer conditioning. Follow the actual kit or yeast directions.

Do I need to transfer the beer before bottling?

Not always. Many kits can be bottled directly from the primary fermenter. An unnecessary transfer adds oxygen and contamination risk, although a separate bottling vessel can help distribute bulk priming solution evenly when used carefully.

Is home brewing legal in the UK?

Adults can brew beer at home for personal consumption in the UK. Selling alcohol is different and requires the relevant licences and compliance.

Start Your First Beer

For the easiest route, choose a complete home brew starter kit. If you already own the equipment, browse our beer brewing kits by style and follow the product instructions. The Hop Shop also stocks fermenters, hydrometers, sanitiser, bottles, pressure barrels and ingredients, with free UK delivery on qualifying orders over £70.

Shop beer brewing kits · Browse starter kits · Read the bottling guide · Read the syphoning guide · Ask The Hop Shop