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Conical Fermenter + Free Insulation Jacket


For a limited time only, get a FREE* Insulation Jacket when you purchase a Grainfather Conical Fermenter.  

The Grainfather Conical Fermenter allows you to control the heating of your unit (and cooling with the Glycol Chiller), dump yeast, take samples and transfer your wort via our innovative dual function valve design. 

With the addition of this fully encasing, ergonomically designed, thermo-jacket, the cooling capabilities of the Conical Fermenter are now even more efficient**. It also maintains temperatures more consistently and reduces excess condensation when fermenting at low temperatures (especially in hot climates). 

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Ferment like never before! The Grainfather Conical Fermenter gives brewers professional fermentation control, just like the commercial breweries.

Fermentation is arguably the most important part of producing a good quality beer. A good fermentation environment starts with a clean and sterile fermenter, which has a consistent controlled temperature base and minimises exposure to oxygen. The Grainfather Conical Fermenter provides you with a modular system for all of this and more!

The Grainfather Conical Fermenter allows you to dump yeast, take samples and transfer your wort via our innovative dual function valve design. Partner it with the Glycol Chiller and you'll have full control over the heating and cooling of your unit.

Note: If you purchase one of these in addition to having already purchased another Conical Fermenter with Glycol Chiller, you will need to purchase an additional Cooling Connection Kit. If you prefer to use this without the Glycol Chiller but still want a way to control your temperature, you might consider the Cooling Pump Kit. 



Double Walled: A stainless steel, double-walled skin is filled with a thick layer of polyurethane foam for insulation. This keeps the wort at a constant and stable temperature with minimal influence from external environmental changes, providing insulation for your fermentation that a standard jacket cannot achieve.

Integrated Gentle Heating: In the cavity of the fermenter between the outer body and cone, sits a 30 Watt, 12V heating element. Unlike standard heating elements/sources that directly heat the liquid, this heat source is designed to heat the environment in between the walls of the fermenter, which in turn heats the liquid. The fermenter acts as an artificial environment which can be heated, meaning the temperature is raised in an even and controlled manner which is much better for yeast.

Integrated Cooling Sleeve: In between the two stainless steel walls sits a cooling sleeve (also made of stainless steel). This cooling sleeve is welded onto the inner wall of the fermenter and can be hooked up to the additionally purchased Glycol Chiller. After setting the desired temperature on your fermenter, the cooling liquid travels through this sleeve, cooling the stainless steel, which then evenly cools the beer within the fermenter. The cooling sleeve never comes into contact with the beer as it is completely concealed and built into the fermenter. This also means it never needs cleaning or sanitising - a true innovation for a fermenter of this scale.

Easy Access to the Interior for Hassle-Free Cleaning: The Grainfather Conical Fermenter has a smooth interior with no additions such as cooling coils or additional sampling valves. This makes cleaning easy and minimises the risk of infection.

Golden Angle Conical: The conical shape of the fermenter is typical for professional breweries. Our conical has been designed with the 'Golden Angle' of 60º. This is the optimum angle for yeast and sediment to drop down to the bottom of the cone without getting stuck to the sides. This allows you to transfer from above the sediment line, resulting in clearer beer. The conical shape also makes it easier to mix during fermentation due to the path of convention currents that it enables to occur.

Dual Valve Tap: This all in one valve, makes the yeast dumping, transferring and sampling process easy. Sampling and transferring is done through an inlet above the sediment line, allowing for clear, sediment-free beer. Easily collect your yeast from below the sediment line with the same unique valve for recultivating and pitching. The innovative design of the valve allows for this dual functionality and means less cleaning for you.

Temperature Control: The temperature controller easily snaps on via magnets and pogo pins. It allows you to accurately set the temperature and you can even control a temperature schedule/profile. You can set up to four profiles each with five stages. Control the fermenters integrated heating element and the cooling when paired with the Glycol Chiller. 

Insulation Jacket: This fully encasingthermo-jacket improves the cooling efficiency of the Conical Fermenter**. It maintains temperatures more consistently and reduces excess condensation when fermenting at low temperatures (especially in hot climates). With its ergonomic design, you can still access all the Conical Fermenter components, such as the digital controller and dual valve tap. 

Support: The Grainfather Conical Fermenter is fully supported around the world by a fantastic support team who love brewing just as much as you do. Our support team is here for any technical enquiries on brewing or how the Conical Fermenter works, as well as general customer service enquiries. All Grainfather Conical Fermenters come with a 3 year warranty.


*T&C's apply: Get a free Insulation Jacket worth $74.95 with your purchase of a Grainfather Conical Fermenter. Available from 20th July 2020, until stocks last. Grainfather reserves the right to modify or cancel the offer at any time. The promotion only applies to products and digital content sold by and is limited to New Zealand and Australia only. Offer excludes the Essential Brewing Set Up, Advanced Brewery Set Up, Basic Cooling Edition and Advanced Cooling Edition. Other offers cannot be used in conjunction with this promotion. Shipping charges are not included and may be an additional cost. Offers are non-transferrable and may not be resold. If any of the products or content related to in this promotion are returned, your refund will equal the amount you paid for the product or content, subject to applicable refund policies.

**In conjunction with the Grainfather Glycol Chiller


  • Conical Fermenter 
  • Fermenter Lid
  • Rubber Bung
  • Bubbler Airlock
  • Cone Plug
  • Cone Plug Seal
  • 5 cm (2") Tri Clamp
  • Digital Temperature Display
  • Power Adapter and Wall Plug
  • 2 m (6.5 ft) M12 3-Pin Power Cord
  • Dual Valve Tap
  • Digital Temperature Controller
  • Insulation Jacket
  • 304 Stainless Steel Body (polished inner and brushed outer)
  • 30 L (8 US Gal) capacity (volume markings on inner body up to 25 L (7 US Gal)
  • 30 W, 12 V heating power
  • 3.8 cm (1.5") ferrule on lid (for pressure transfer attachments)
  • 5 cm (2") ferrule on bottom of cone
  • Dual Valve Tap with 110 mm (4.3”) inlet

Dimensions of Conical Fermenter: 
Diameter with handles: 360 mm
Height (without airlock): 910 mm
Height with bubbler airlock: 1090 mm

Dimensions of Carton
368 mm W x 325 mm L x 905 mm H

Dimensions of the jacket: 
Height - 90 cm (35.5") 
Diameter - 40 cm (16") 

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