Grainfather G40/G70 Whirlpool Arm

Grainfather G40/G70 Whirlpool Arm – whirlpool without manual stirring

The Whirlpool Arm is an accessory for the Grainfather G40 and G70 that makes it easy to create a whirlpool without stirring by hand. Connect it to the recirculation pipe on the G40 or G70 and let the pump do the work. Hops and trub collect in a cone in the centre of the base, so you can transfer clear wort to the fermenter more easily and carry over less sediment.

How to use the Whirlpool Arm

1. At the end of the boil, make sure both the pump and the recirculation valve are switched off.
2. Connect the Whirlpool Arm to the recirculation pipe so the other end sits below the surface of the wort.
3. Make sure the wort is below 99 °C (210 °F), or at the whirlpool temperature your recipe calls for. Switch on the pump and slowly open the valve to start recirculating.
4. Add your whirlpool hops and recirculate according to the recipe.
5. When finished, switch off the pump and carefully remove the Whirlpool Arm. Connect the counterflow chiller to chill and transfer the wort to the fermenter.

Features

• Fits Grainfather G40 and G70
• Connects to the recirculation pipe
• Collects hops and trub in the centre of the base
• Whirlpool without manual stirring

Frequently asked questions about the Grainfather G40/G70 Whirlpool Arm

What temperature should the wort be during the whirlpool?

Below 99 °C, or the temperature your recipe calls for. For hop stands and whirlpools with aroma hops, many brewers use 70–90 °C for 10–30 minutes.

Why whirlpool?

A whirlpool collects hops and trub in a cone in the centre of the kettle. This makes it easier to draw clear wort from the side, and less sediment goes on to the fermenter.

Related

• Grainfather brewing systems
• Grainfather G40
• Grainfather G70v2
• Grainfather G40 and G70 Hop Filter
• Brewing and hops