By Lauren HollandUpdated November 2026
Choosing a keg king pressure fermenter means weighing batch size, pressure rating, fittings and how easily you can clean and transfer your beer. This list compares four pressure fermenters across those criteria, favoring units with a pressure relief valve, a dip tube or floating pickup for clean transfers, and parts that are easy to find if you need a replacement.
Our top picks at a glance
- 1
TOP CHOICEBest overallOxebar 20L Amber PET Keg – Pressure Fermenter, Beer Brewing Keg With FView on Amazon - 2
Best for larger batchesFermZilla All Rounder Easy-Grip Pressure Fermenter Starter Kit – 30LView on Amazon - 3
Best for yeast harvestingFermZilla Tri-Conical Easy-Grip Pressure Fermenter Starter Kit – 27LView on Amazon - 4
Best for temperature controlVEVOR Pressure Fermenter 15 PSI, 16 Gal/60L All-in-One Stainless SteelView on Amazon
Our Top Picks
Quick Comparison
| Product | Best for | Key feature |
|---|---|---|
| Oxebar 20L Amber PET Keg | Overall use | Floating dip tube, PRV |
| FermZilla All Rounder 30L | Larger batches | Easy-grip starter kit |
| FermZilla Tri-Conical 27L | Yeast harvesting | Tri-conical bottom |
| VEVOR 60L Stainless Conical | Temperature control | Cooling tube, 15 PSI rating |
Oxebar 20L Amber PET Keg – Pressure Fermenter, Beer Brewing Keg With Floating Dip Tube, PRV, Carbonation Cap
Oxebar 20L Amber PET Keg – Pressure Fermenter, Beer Brewing Keg With Floating Dip Tube, PRV, Carbonation Cap – Home & Commercial Use
Best for: Overall use in a compact pressure setup.
This suits homebrewers who want a single vessel that ferments under pressure and serves directly from the same unit, without moving beer between containers.
Pros
- Floating dip tube keeps the pickup clear of trub.
- Includes a pressure relief valve and carbonation cap.
Cons
- 20-liter capacity limits batch size.
FermZilla All Rounder Easy-Grip Pressure Fermenter Starter Kit – 30L
FermZilla All Rounder Easy-Grip Pressure Fermenter Starter Kit – 30L
Best for: Larger batches with a simple starter kit.
Brewers moving up from five-gallon batches who want more volume and an easy-grip body for lifting and cleaning.
Pros
- 30-liter capacity suits full batches.
- Easy-grip design makes handling simpler.
Cons
- Heavier when full, so plan your lifting.
FermZilla Tri-Conical Easy-Grip Pressure Fermenter Starter Kit – 27L
FermZilla Tri-Conical Easy-Grip Pressure Fermenter Starter Kit – 27L
Best for: Yeast harvesting from a conical bottom.
Ideal for brewers who reuse yeast and want trub and spent yeast to settle into a dedicated bottom port.
Pros
- Tri-conical bottom concentrates yeast for harvesting.
- Easy-grip body matches the All Rounder line.
Cons
- Conical geometry needs careful cleaning of the valves.
VEVOR Pressure Fermenter 15 PSI, 16 Gal/60L All-in-One Stainless Steel Conical Secondary Fermentation Bucket
VEVOR Pressure Fermenter 15 PSI, 16 Gal/60L All-in-One Stainless Steel Conical Secondary Fermentation Bucket, with Cooling Tube, Yeast Slurry Collection Bottle, for Wine, Beer Brewing Equipment
Best for: Temperature control and large volumes.
Suited to brewers running cooled or glycol-controlled fermentations who need a rated stainless vessel at larger volumes.
Pros
- Stainless construction with a 15 PSI rating.
- Cooling tube and yeast slurry bottle included.
Cons
- Large footprint needs floor or shelf space.
Buying Guide
Batch size
Match capacity to how much finished beer you want per brew. A 20-liter vessel yields roughly five gallons after trub loss, while 27 to 30 liters leaves room for a fuller batch.
Pressure rating and relief valve
Confirm the rated PSI and that a pressure relief valve is fitted. Manufacturers specify maximum working pressures, and you should never exceed them.
Transfer and pickup design
A floating dip tube or dedicated racking port reduces trub carryover when moving beer to a keg or bottling bucket.
Temperature control compatibility
If you plan to ferment cold, check for a cooling tube or jacket fitting so the unit works with a glycol or chilling setup.
Good picks for this: Oxebar 20L Amber PET Keg and VEVOR 60L Stainless Conical
FAQ
Can I use a keg king pressure fermenter for lagers?
Yes, provided you can hold the fermentation temperature near the target range, which usually calls for a chamber or cooling setup.
What pressure should I ferment at?
Follow the manufacturer’s stated maximum and keep the relief valve working; most homebrewers ferment well below the rated limit.
How do I clean a pressure fermenter?
Rinse, sanitize with a no-rinse acid sanitizer, and clean valves and fittings after every batch to prevent buildup.
Conclusion
For a general-purpose vessel, the Oxebar 20L suits most small batches. Larger brewers should look at the FermZilla 30L, yeast harvesters will prefer the Tri-Conical, and temperature-controlled setups fit the VEVOR 60L.
Sources
- Food safety guidance on cleaning and sanitizing food-contact equipment (fda.gov)
- Pressure vessel and compressed gas safety basics (osha.gov)
- Standards for pressure vessel design and rating
Related reading
- How to Transfer from Fermenter to Keg: A Step-by-Step Guide for Homebrewers
- Fermenter King Junior 20L: Setup, Brew Day Steps and Tips for Homebrewers
- Bottling from Pressure Fermenter: A Step-by-Step Guide for Homebrewers
- Why Is My Fermenter Too Exposed in Valheim? Causes and Fixes
- White Film on Beer in Fermenter: What It Is and How to Fix It
- When to Transfer to Secondary Fermenter: A Homebrewer's Guide
About Lauren Holland
Lauren Holland is part of our editorial team and reviews and edits our home brewing guides, checking product details against manufacturer specifications and owner feedback.
