How to make a simple tempeh incubator. For all information regarding, how to make tempeh or purchasing of materials for tempeh/tofu making please visit

Completed simple incubator.

This is a simple set of step by step instructions so that anyone can make a simple, cheap incubator for the home use of making delicious fresh white tempeh!

You will need: 1 Styrofoam box,1 basket that fits inside the box,2 plastic rods and a 25 watt aquarium heater.

For tools you will need: 1 measure tape,1 marker,1 knife or hole saw and a drill bit bigger than the diameter of the plastic rods.

1: mark the expected water level, this needs to cover your aquarium heater generously. 2: Mark the bottom of the hole that you will cut. Leave about 25 mm space between the water level and the bottom of the hole. 3 : cut the hole, about 50 mm diameter so the heater will fit through.

Once you have cut the hole, round or square, place your basket on the 2 plastic rods and mark where to make the holes, about 40 mm below the top, use your drill bit manually, no need for a drill.

Once you have drilled the four holes, push the plastic rods in position and place the basket on top. It should be suspended above expected water level and not touching the lid, once it is in position.

Set the temperature of your heater to 30 Degrees Celcius, feed through the hole and place on the bottom, making sure it is fully submerged under water.

It should look this this, make sure the water level covering the heater and turn it on.

Place the lid on top and check the ambient temperature after 24 hours, it should be around 30 Degrees.

Once the temperature has stabilized around 30 degrees, proceed to prepare your beans,inoculate, put in the bag and place in the basket.

Place the lid on top, close the box and proceed the fermentation as per instructions that came with your order of the tempeh kit.

Alternatively you can place a rack on top of some rods and place your bags on there to ferment.

Full instructions for successful tempeh making will come with your order of a tempeh kit or tempeh starter, see you at: thanks and good luck