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Conical Unitank

428 reviews

Professional and innovative by design, the Spike Conical Fermenters (CF) provide the highest quality level of fermentation, no matter if you have a full-scale brewery or a space in your garage.

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Estimated Total $600.00


The Spike conical fermenter line will simplify your Brew Day from start to finish!

  • Easy to install lid
  • Quick cleaning process
  • 2” dump port

Plus an assortment of accessories so you can customize your conical to fit your precise brewing needs.

Each CF lid comes with three TC ports:

Blow Off Port – Dedicated port for an airlock or blow off tube

Hop Port – Dedicated port for adding hops

PRV Port – Dedicated port for your pressure relief valve (PRV)


  • 304 stainless steel; 1.2mm (18ga)
  • All sanitary welded ports 
  • Designed for 2.5 to 6 gallon batches 
    • 7 gallon total capacity
  • 15psi working pressure (always use a 15psi pressure relief valve) 
    • Use for pressure transfers 
    • Use as a brite tank
  • Etched volume markings
  • 14" wide by 29¨ tall
  • Fully polished finish

Lid Features:

  • Stainless band clamp for simple lid installation
    • Completely removable lid for easy cleaning
  • 4" TC modular top port
    • Allows for hop additions, temp control coil, top sight glass, etc
  • (3) 1.5" TC ports which allow for:
    • Blow Off Port – Dedicated port for an airlock or blow off tube
    • Hop Port – Dedicated port for adding hops
    • PRV Port – Dedicated port for your pressure relief valve (PRV)

Body Features:

  • · Huge 2” TC bottom dump with butterfly valves (no more stuck yeast dumps)
  • 1.5” TC racking port with butterfly valve
  • 1.5” TC sample valve (for taking gravity readings)
  • 1.5” TC dial thermometer

Have more questions?

Head over to our FAQ page for quick answers!


Customer Reviews
4.9 Based on 428 Reviews
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Filter Reviews:
dennis c.
United States United States

cf5 bargain cave conical

when i ordered a bargain cave model i thought it might come with a dent, scuff marks, or other minor flaws. what i didn't expect was missing level markings inside conical. knowing that may not have ordered. in the future you might want to include what is wrong with the bargain models and also a photo . overall still a quality product . Thanks

Richard S.
United States United States

This thing is great

I love this thing, so easy to clean and more convenient than using buckets. Great build, I did go back and get the extended legs casters and brace after the first use makes it more user friendly, for me. I also wrapped it in 5mm neoprene used my on hand bucket heater under the wrap. That keeps my ferment perfect till it’s complete sitting in my unheated garage. I know they are spendy but the convenience is so much nicer.

Jon M.
United States United States

Incredibly well built

The welds are perfect, the multitude of accessories from both Spike and other companies who use the standard TC connections make this an amazing fermenter. Upgraded from a flex+ and couldn’t be happier!

SPIKE Bargain Cave:<br />CF30 Spike Conical Unitank Review
A SPIKE Customer
United States United States

Shiny stainless steel

Run Amok Mead now owns 10 of these, and we think they are spectacularly awesome. They’re very well-made, can safely be pressurized, with a relief valve, and they have a dump valve, a racking valve and a sample port. The lids have three 1.5 inch tri-clamp fittings in addition to the central 4 inch port, for whatever you need: blow off tube, gas Manifold, hops additions, you name it. All 10 of ours are on wheels, to help us utilize our small space, and I am 100% certain that my liver will fail before this equipment does. Thanks Spike!

Adam T.
United States United States

CF15 is Amazing

I love the CF15 so much that I bought a second one. They are so versatile because of their height, allowing for a wide range of batch sizes and future-proofing your batch size scalability.

SPIKE Bargain Cave:<br />CF30 Spike Conical Unitank ReviewSPIKE Bargain Cave:<br />CF30 Spike Conical Unitank Review


3-Port Lid

Every Conical Fermenter comes with a standard lid with three 1.5” tri-clamp ports. The ports are specifically designed for a blow off port, hop addition port and a pressure relief valve (PRV) port so you can stay safe when your CF is under pressure.

Locally Welded

We weld all our CF fittings right here at our facility in Milwaukee, WI. Why does this matter? It means we have control over our strict quality standards. Most competitor models are welded overseas, so there’s fewer quality and control checks throughout the process. Spoiler alert: Sanitary welds are very important when you’re making something that will eventually be consumed.


A Unitank refers to a fermenter that can ferment and carbonate beer in one vessel. Cut down your carbonation time from 7 days in bottles and kegs to just over 24 hours using a CF Unitank and our carb stone!

Temperature Control

Temperature control is crucial to fermentation. Some beer styles can be kept at room temperature, while others need to be kept cooler. The Spike CF line has a temperature control system (the TC-100) which will keep your beer within 1 degree of your fermentation target temperature.

Conical Unitank Walkthrough

Since fermentation is the most important part of the brewing process, this just might be the most important video to help you upgrade your bucket or glass carboy. Watch as Ryan and Adam talk through the Spike Conical from the bottom up!

Spike Brewing Conical Unitank

Your next great beer starts with a Spike Conical Unitank. Ferment, brite and pressure transfer all from one tank! 

How to Assemble Your Spike Conical

Set up your Spike Conical fermenter in just a few simple steps. 

Conical Unitank Walkthrough

Conical Unitank Walkthrough

Watch Video
Spike Brewing Conical Unitank

Spike Brewing Conical Unitank

Watch Video
How to Assemble Your Spike Conical

How to Assemble Your Spike Conical

Watch Video
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Endless Accessories

With over 25 accessories available, there’s no limit to what your Conical Fermenter can do! All accessories come “a la carte” so you can outfit your Conical exactly how you want. It doesn’t make sense for us to guess how you’ll be brewing and charge for accessories you don’t need. Want to pressure transfer to a beer keg? We can help with that! Want to add wheels to move your Conical? Sounds good. Want to… you get the point.

02 / 06

Tri-Clamp Fittings

The CF line uses tri-clamp fittings. A tri-clamp fitting uses a gasket and clamp to make a sanitary connection. It is the only connection you’ll find at a professional brewery. They're easy to use, never leak and are considered a standard connection, so almost any accessory can be attached.

03 / 06

Removeable Lid

The entire lid is easily removable so you can keep the inside (and outside!) squeaky clean.

04 / 06

Half Batch Capable

The racking port, sample port and thermometer port are all low enough to be able to do a full volume batch as well as a half batch. All accessories like the temperature control coil, heating pad, etc., are designed to work with a half batch as well.

05 / 06

Oversized Bottom Port

Our CF’s have an oversized (but arguably necessary) 2” tri-clamp bottom dump port. Due to the pressure being exerted, the odds that this port gets clogged are slim to none.

06 / 06

CIP Capable

Add our optional CIP ball to the 1.5” tri-clamp port on your lid and connect that to a brew pump. The pump will spin the ball and power wash your CF, making hand scrubbing a thing of the past!

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