ProTea Brewer™


Professional Microbe Brewer

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SKU: ProTea-Brewer Categories: , ,


Over the last decade applying compost teas to crops has been proven to be effective at bio-balancing disease and increasing crop health. The use of compost teas has reduced fertiliser and chemical costs.

The ProTea Brewer™ provides reliable brewing that produces high diversity and microbe counts.

Key Benefits:

• Simple to operate.
• Inexpensive.
• Brews up to 100 – 800 litres.
• Modular and scalable if more litres are required.
• World class aeration technology to ensure optional aeration.
• Suitable for consultants and commercial growers.


Requirements you Need to Assemble and Operate the Brewer:

• Medium Philips head screwdriver to attached pipe to aerator.
• Electric drill (we supply the 40 mm bit).
• Angle grinder with basic cutting disc.
• Multi-Grips or Monkey Wrench to tighten 50 mm fitting.
• Transfer pump or a secure elevated area (loading bay) were the tank can be gravity feed to spray/fertigation tank if forklift unavailable.
• Microbes and microbe food from
• Empty 1000 litre IBC tank (shown below). Purchase locally see notes at end.


How to Setup the Brewer:

Step 1 – Remove the top bars from the 1000 litre IBC tank.
IBC Tank Compost Tea Brewer Bars
With the Philips screwdriver unscrew the 2 bars (under red arrows above) and remove them. Sometimes torque/hex screws are used and if you have trouble removing them cut out the screws with a hacksaw or angle grinder. Don’t damage the bars as we will reconnect them later.


Step 2 – Cut open the top of the tank
Compost Tea Brewer Top
With the angle grinder cut the plastic top out (follow the red line in the image above).  File burrs off for a smooth finish. Cutting 5 to 10 cm in from the edge with give the tank extra strength.  


Step 3 – Drill the tank inlet hole.
Compost Tea Brewer Hole
With the electric drill and the 40 mm bit supplied in the kit drill into the plastic on the side of the tank in the area marked red above.  The centre of the hole needs to be 50mm clear from any steel bars and curved plastic. Note the position the tap outlet to where the hole is drilled so the same as the image above.


Step 4 – Connect pump
Put the 4 aerators inside the tank and put the threaded part of the manifold through the hole above making sure there is a rubber seal (ribs face the tank) on the inside. On the outside of the tank put on the outside seal (ribs face the tank) and the nut and tighten (with multi-grips) then screw on the reducer. The aerator ends can touch the bottom of the tank. With the screwdriver connect the pipe to the pump then connect the other end to the reducer. Reconnect the bars that we took off in the first step.


Step 5 – Setup
If you don’t have a forklift to transport the brewing tank to the sprayer/fertigator there are a few options listed below:

1/ Purchase a transfer pump for about $299.00 (contact us) so you can pump to sprayer/fertigator. It will take 15 minutes to transfer a whole brew.

2/ Elevate the brewer tank securely. Put the tank in concrete loading bay so it can be gravity feed into sprayer or fertigator. Note: It will be about 1000 kg so it needs to be secured properly to reduce any chance of failing over.


Brewing Instructions / Rates:

Please read


IBC 1000 Litre Tank Notes:

Most IBC tanks have a 50 mm female buttress thread (course) on the outlet tap but there are fine thread and cam lock outlets. Pick one that best suits the current connections to your spray/fertigation tank or transfer pump. I personally prefer cam lock fittings (quick to remove) but they can be hard to find on IBC tanks but you can purchase a 50 mm female buttress thread to cam lock adapter for about $20.00 (contact us for details).

A 1000 L IBC tank can cost from $150 to $600 depending on the age and condition. Try to acquire one with a steel base as they last longer than the wooden bases. Check that the tap is in good working order.

Additional information

Weight 34000 kg