30L Fermenter King Chubby


Regular price £59.95 Sale price £53.95
16 in stock

Introducing the brand new 30L Pressure Fermenter by Keg Keg, Chubby!!

Looking for a round bottomed pressure fermenter that will hold your whole single batch of beer?

Well, whip out your Chubby and get the pressure on your next batch. Perfect for 23-25L batches without having to compromise or change your volumes. 

Chubby has all the volume you need plus headspace.

These rugged, durable PET pressure fermenters are made from the same crystal clear PET material as our entire line of Fermenter King pressure fermenters and unitanks.

The pressure caps on these come standard and are the same, high strength design as those used in our smaller 20L Fermenter King Junior fermenters.

Even without a dump valve, brewers can still extract bright, clear beer after fermentation by way of the floating diptubes that come standard with each Chubby fermenter.

Easy to clean and contains fewer parts than unitank style pressure fermenters, Chubby is easily maintained by using a keg washer after fermenation. 

The super smooth interiors make clean up simple.

Everything is more exciting when you have a Chubby!

  • Height = 595mm to top of posts on the lid
  • Width = 300mm round

Customer Reviews

Based on 4 reviews
Mr D M Hesmondhalgh
30 litre Chubby

Perfect for the job! Cheap and cheerfully made. Ideal

Garry M.
Game changer

My first lager brewed under pressure was incredible and completed in under a week just showing how bad my previous brews were this is the way forward from now on and will be getting another asap

Nicholas Nicolaides
Top product. Makes brewing easy.

This is a really good product! Cleaning and brewing is easy with a Chubby!
I was concerned when product arrived with a big scratch on the outside that ran from the centre to down below the black plastic base. I pressure tested it and it was fine, so far I have brewed an American IPA and a second Hazy IPA is currently underway.
I purchased the 15psi PRV and used this in place of a spunding valve. Pressure is released above 15psi and drops to 11psi (perfect for ales). I brewed 23litres which leaves enough headroom for the crauzen to rise.
Hop additions are relatively easy. The neck is narrower than the Fermentasaurus but it was easy to open and quickly dry hop. Be aware that the pressure needs to be released slowly before opening the cap (wait 5mins after slowly releasing pressure). Beer comes out with mild carbonation at 15psi - if you want to you could quickly swap the 15psi PRV for the standard 35psi PRV after a late hop addition for extra bubbles.
This is a massive upgrade over a basic brew bucket. Faster fermentation at higher temperature, massively reduced chance of oxidisation and easy pressure transfer to keg with carbonation already well underway.

Don Sheppard
The ideal, simple pressure fermenter

I bought the FK Chubby to replace my 30 ltr Fermzilla All Rounder which just wouldn't hold pressure.
The Chubby, like my FK Junior, holds the pressure perfectly. I tested it for 2 weeks at 10psi without any loss of pressure. It is also so much easier to handle than the Fermzilla, particularly the lid assembly. I would thoroughly recommend it as the ideal, simple pressure fermenter.


In normal circumstances we aim to despatch all orders received before 12pm the same working day via the method of shipment chosen at checkout.

We offer FREE STANDARD DELIVERY for all orders over £70 to most regions of the UK.

For orders under 5Kg, we usually use Royal Mail.

For any order over 5Kg we use DPD who can handle heavier and bulkier packages.

Unfortunately, for certain regions within the UK there is an extra charge for delivery, as per the table below (Postcode Areas with Delivery Surcharge)

*PLEASE NOTE: For any customers residing in the postal code areas shown below we can still ship any small & light parcels under 2kg via Royal Mail. Please contact sales@brew2bottle.co.uk & we will happily arrange this for you.*


  • £5.95
  • Up to 5 Working Days (Monday-Friday)
  • Insured Delivery Service
  • FREE for orders £70.00 or above


  • £7.95
  • Order Before 12pm for Next Working Day (Monday-FridayDelivery
  • UK Mainland Only
  • Any Express orders placed on Saturday or Sunday will be dispatched the next working day, ie Monday, unless a Bank Holiday.


Region Post Code Range Service Shipping Cost

Northern Ireland

BT1 - BT99

Standard - 2 Days

£ 15.00

Isle of Man

IM1 - IM9

Standard - 2 Days

£ 18.00

Channel Islands

JE2 -JE3
GY1 – GY10

Standard - 2 Days

£ 15.00

Scottish Highlands

AB36 - AB38
AB55 - AB56
FK17 - FK21
IV1 – IV39
IV52 - IV54
KW1 - KW14
PA21 - PA40
PH19 - PH26
PH30 - PH41
PH49 - PH50

Standard - 2 Days

£ 15.00

Scilly Isles

TR21 - TR25

Standard - 2 Days

£ 20.00

Scottish Islands

HS1 - HS9
IV40 - IV51
IV55 - IV56
KA27 - KA28
KW15 - KW17
PA41 - PA49
PA60 - PA78
PH42 - PA44
ZE1 - ZE3

Standard - 2 Days

£ 16.00


Due to size restrictions through some courier networks, some items are available on Standard Delivery only.


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If for any reason your package arrives with signs of damage please sign for the package as damaged.