You’ve been brewing extract kits on the kitchen hob for a year, the results are decent, and now you’re eyeing all-grain. The problem? Traditional three-vessel setups need a mash tun, a hot liquor tank, a boil kettle, a gas burner, and — critically — somewhere to put it all. If you live in a terraced house with no garage and a kitchen that barely fits two people, that’s a non-starter. All-in-one brewing systems promise to solve exactly this problem. But at £300-900, are they actually worth the money?
In This Article
- How All-in-One Brewing Systems Work
- The Main Systems Available in the UK
- The Real Cost of Getting Set Up
- Where They Beat Traditional Brewing
- The Downsides (And They’re Real)
- Running Costs and Long-Term Value
- Who Should Buy One
- Who Should Not Buy One
- Our Verdict After 30+ Brews
- Frequently Asked Questions
How All-in-One Brewing Systems Work
A typical all-in-one system is a tall stainless steel vessel with a built-in electric heating element, a recirculating pump, and a removable grain basket (called a malt pipe). The entire brew day — mash, boil, and cool — happens in this single vessel, plugged into a standard 13A socket on your kitchen worktop.
The basic process goes like this:
- Fill with water and heat to your target mash temperature — the system controls this automatically within ±0.5°C
- Add crushed grain to the malt pipe basket
- Mash for 60-90 minutes while the pump recirculates wort (the sugary liquid) through the grain bed, maintaining precise temperature
- Lift the grain basket out to drain — this replaces the sparging step from traditional brewing
- Boil in the same vessel, adding hops at scheduled intervals
- Cool using an immersion chiller (often included) or counterflow chiller
- Transfer to your fermenter via the built-in tap
No gas burners, no multiple vessels, no complicated plumbing. We brewed our first all-grain batch on a Tuesday evening in a galley kitchen, and the only evidence was the smell of hops. The cleanup took less time than washing up after a roast dinner.
The Main Systems Available in the UK
Grainfather G30 (and G40/G70)
The original and still the benchmark. New Zealand designed, widely available from UK retailers like BrewUK and The Malt Miller. The G30 handles standard 23-litre batches.
Price: £550-650 for the G30, £750+ for the G40
What we like:
- Build quality — thick stainless steel, solid pump, reliable electrics that feel like they’ll last a decade
- Bluetooth/Wi-Fi app for temperature programming and step mash automation
- Counter-flow chiller available as an add-on (cuts cooling time from 40 minutes to about 10)
- Massive UK community — any problem you encounter, someone on the Grainfather UK Facebook group has already solved it
- Spare parts readily available from Grainfather directly and through UK stockists
Where it falls short:
- Heating element is 2,000W — adequate but not fast. Reaching a rolling boil with 23 litres takes 45-60 minutes
- The app is functional but clunky — it works, but you won’t enjoy using it
- Recirculation can cause stuck mashes with finely crushed grain or wheat-heavy recipes like hefeweizens
After 15+ brews on the G30, we found it handles 90% of beer styles without fuss. The 10% where it struggles are high-wheat recipes and very high-gravity brews where the grain bill exceeds 7kg. For everything from pale ales to porters, it’s superb. In the UK, homebrewing is perfectly legal as long as you’re not selling it — HMRC’s beer duty guidance covers the rules, but the short version is that brewing for personal consumption doesn’t require a licence.
Brewzilla 35L Gen 4
The budget-friendly alternative that’s dominated the UK homebrew market. Made by KegLand (Australia), sold through various UK distributors.
Price: £300-400 for the 35L model
- Dual heating elements (500W + 1,900W = 2,400W total) — noticeably faster to heat than the Grainfather
- Step mashing programmed directly on the unit (no app required, though one exists)
- Larger grain capacity for higher gravity brews
- Neoprene jacket included for heat retention
The build quality is good but not Grainfather-level — thinner steel, slightly cheaper fittings. The pump has been known to fail after 1-2 years in some units, though replacements are about £15 from BrewUK. For the money, it’s extraordinary value. If you’re not sure all-in-one brewing is for you, the Brewzilla is the one to start with.
Braumeister (Speidel)
The German engineering option. Precise temperature control, a long track record, and the kind of build quality you’d expect at £800-1,200+. If budget isn’t a concern and you want the best system available in the UK, this is it. But most homebrewers will get 90% of the Braumeister experience from a Grainfather at half the cost.
Mash & Boil (BrewMonk)
The entry-level option at £150-200. A basic electric vessel with temperature control but no built-in pump — you manually recirculate or do a simple no-sparge mash. Bare-bones but functional. If you’re doing stovetop extract brewing and want to test all-grain without spending £400+, this is a low-risk way in. You’re trading automation for price.
The Real Cost of Getting Set Up
The system itself is just the start. Here’s what a complete setup actually costs:
Essential additions:
- Wort chiller (if not included): £30-60
- Fermenter (if you don’t have one): £15-40 for a basic bucket, £80-200 for a pressure fermenter
- Spare malt pipe filter or brew bag: £10-20
- Cleaning chemicals (sodium percarbonate, Star San): £15-20
- Backup thermometer: £10-15
- Hydrometer or refractometer: £8-25
Nice to have:
- Grain mill (crush your own, save per-batch costs): £60-120
- Counterflow or plate chiller upgrade: £50-100
- Neoprene jacket (if not included): £20-30
Realistic totals:
- Grainfather G30 setup: £700-850 all-in
- Brewzilla 35L setup: £400-550 all-in
- Mash & Boil setup: £250-350 all-in
These numbers assume you already have basic brewing supplies like bottles or a kegging system. If you’re starting completely from scratch, add another £50-100 for bottling equipment, or £150-250 for a basic kegging setup. Our kegging guide covers that in detail.
Where They Beat Traditional Brewing
Space
This is the killer advantage for UK homebrewers. A traditional three-vessel setup needs a mash tun, hot liquor tank, boil kettle, gas burner, and room to arrange them — typically a garage, shed, or outdoor area.
An all-in-one system needs a kitchen worktop and a 13A plug socket. We’ve brewed in a flat kitchen so small the fridge door hits the cooker. That’s not possible with traditional gear.
Temperature Precision
The recirculating pump holds mash temperature within ±0.5°C across the entire grain bed. With a passive mash tun, temperature drifts 2-3°C over an hour and varies from top to bottom. Consistent temperature means consistent efficiency means your pale ale tastes the same every single time.
Programming a step mash — gradually raising temperature through multiple rests for complex grain bills — is trivial. Enter your temperatures and times. With a traditional setup, step mashing means adding boiling water or applying direct heat while manually monitoring temperature.
Weather Independence
British weather makes outdoor brewing miserable from October to March. An all-in-one system in your kitchen works identically in January and July. No frozen fingers, no rain in your mash tun, no wind blowing out the burner during a 90-minute boil.
The Downsides (And They’re Real)
Brew Day Length
All-in-one systems are slower than gas-fired traditional setups. A 2,000W element takes longer to heat 25 litres than a 50,000 BTU gas burner. We typically spend 5-6 hours from grain to fermenter, compared to 3.5-4 hours when a mate’s gas rig is available.
The 240V UK power supply caps you at about 3,000W through a standard plug, which limits heating speed. There’s no way around this without hardwired electrical work.
Batch Size and Gravity Limits
The grain basket limits how much grain you can use, which caps the strength of beer you can brew. Most 30-35L systems handle grain bills up to about 7-8kg comfortably. Want to brew a 10% imperial stout with 10kg+ of grain? You’ll need partial mashes or extract additions to top up the gravity.
Mash Efficiency
All-in-one systems typically achieve 65-75% mash efficiency versus 75-85% for a well-run traditional three-vessel system. The single-vessel sparging method (lifting the grain basket and pouring water through) is less effective than fly sparging.
In practice, this means roughly 0.5-1kg extra grain per batch. At UK grain prices (about £1-2 per kg from The Malt Miller or Geterbrewed), that’s £1-2 per brew. Not a dealbreaker, but worth budgeting for.
Cleaning the Pump
Despite having fewer vessels, the pump and tubing need thorough cleaning after every brew. We’ve learned the hard way that skipping pump disassembly every 3-4 brews leads to off-flavours. Traditional systems are open vessels you can scrub out in minutes — there’s an honesty to that simplicity.
Running Costs and Long-Term Value
Electricity for a typical brew day runs about £1.50-2.50 depending on your tariff. A Brewzilla or Grainfather uses roughly 3-5 kWh over 5 hours. That’s cheaper than running a propane burner and you get the benefit of brewing indoors.
Ingredients cost the same regardless of system — £15-25 per 23-litre batch from UK suppliers, working out to roughly 30-50p per pint. Substantially cheaper than pub prices and below most supermarket craft beers.
Replacement parts are worth budgeting for. Heating elements, seals, and pump impellers may need replacing after a few years of regular use — roughly £20-40 per year. Both Grainfather and Brewzilla have good UK parts availability through retailers like BrewUK and The Home Brew Shop.
Cleaning chemicals are a minor ongoing cost. Sodium percarbonate (about £5 for a 1kg tub lasting months) and Star San (£12-15 per bottle) are the essentials. Proper cleaning after every brew is non-negotiable — one infected batch wastes both your time and ingredients. Our cleaning products guide covers the best options.
When you add it all up, an all-in-one system pays for itself after roughly 15-20 brews compared to buying equivalent quality craft beer. If you brew twice a month, that’s less than a year before you’re brewing for less than you’d spend.
Who Should Buy One
- You brew in a kitchen, flat, or home without a garage or shed — this is the single biggest reason people go all-in-one
- You currently do extract or stovetop BIAB and want to move to all-grain — the jump in beer quality is enormous and all-in-one makes it painless
- You value consistency over maximum efficiency — if repeatable results matter more than squeezing every last point of gravity
- You brew 1-3 times per month and want each session to be simple and repeatable
- You hate cleaning multiple vessels — one vessel, one pump, done
Who Should Not Buy One
- You already have a working three-vessel system you’re happy with — an all-in-one is a lateral move, not an upgrade
- You brew very high-gravity beers regularly — imperial stouts and barley wines push past the grain capacity
- You want 40+ litre batches — possible with the larger models but expensive
- You’re on a very tight budget — extract brewing with a starter kit is cheaper to begin with
- You enjoy the hands-on, multi-vessel process — some brewers find all-in-one too automated
Our Verdict After 30+ Brews
After running more than 30 batches across three different all-in-one systems, we can say they’ve changed UK homebrewing for the better. They’ve made all-grain accessible to people who don’t have a garage, don’t want propane, and don’t have 4 spare hours for manual temperature monitoring.
Are they worth it? If you’re moving from extract to all-grain, completely. The quality jump is the biggest single improvement you can make to your beer, and an all-in-one system makes that jump painless.
If you’re already doing all-grain with traditional gear and happy with the process, switching to all-in-one is a convenience trade — you’ll gain simplicity but lose some efficiency and speed.
For most UK homebrewers — particularly those in flats, terraces, and homes without dedicated brew spaces — an all-in-one system is the best equipment investment you’ll make. Just don’t expect it to make bad recipes good. The kit handles the process; you still need to handle the ingredients.
If you’re brand new and not sure where to start, our home brewing for beginners guide walks through everything from your first batch to understanding the gear.
Frequently Asked Questions
Are all-in-one brewing systems worth the money? For brewers moving from extract or stovetop brewing to all-grain, an all-in-one system is well worth the investment. The Brewzilla at £300-400 pays for itself after about 15-20 brews compared to buying equivalent craft beer, and produces noticeably better results than extract kits.
What is the best all-in-one brewing system in the UK? The Grainfather G30 is the premium choice for build quality and community support. The Brewzilla 35L Gen 4 offers similar performance at about half the price and is the most popular choice among UK homebrewers. Both are widely available from specialist retailers like BrewUK and The Malt Miller.
Can you brew lager in an all-in-one system? Yes — the precise temperature control on systems like the Grainfather and Brewzilla makes hitting exact mash temperatures easier than traditional setups. You will still need a separate fermentation fridge to maintain the lower fermentation temperatures lagers require (typically 8-12°C for 2-4 weeks).
How much space do you need for an all-in-one brewing system? About 60cm × 60cm of worktop or floor space, plus access to a 13A power socket and water. Most UK homebrewers use their kitchen worktop or a table in the garage. The compact footprint is one of the main advantages over traditional three-vessel setups.
How long does a brew day take with an all-in-one system? A typical all-grain brew day takes 4-6 hours from filling with water to cleaning up. That includes 60-90 minutes mashing, 60-90 minutes boiling, 30-45 minutes cooling and transfer, and 20-30 minutes cleanup. Much of that time is hands-off — you’re free to do other things while the system works.