pH Test for Wormeries

The pH Test works hand in hand with our RegulaWorm. Your worms prefer a neutral environment, between 7 and 8: if the strip shows acidity, add RegulaWorm (or powdered eggshells) to the active tray, then test again a few days later.

A slightly alkaline colour after adding eggshells is nothing to worry about: simply add them less often. If in doubt, email us a photo of the strip.

The pH Test box contains 72 strips, enough to monitor the acidity of your wormery for a long time. The strips keep for 3 years in a dry place, away from light.

Close the box properly after each use. A test every now and then is enough, for example when you notice fruit flies appearing. You can also use the same box for several bins: wormery, composter or bokashi.

Yes, the pH Test strips measure the pH of any liquid or diluted mixture: wormery, composter or bokashi. For a composter, proceed as with vermicompost: one volume of compost to about 4 volumes of water.

For a bokashi, an acidic liquid is normal, as it is a fermentation process: the test then helps you check that it is progressing well. However, avoid adding a large quantity of very acidic bokashi to your wormery without rebalancing it with RegulaWorm.

The pH Test is very easy to use:

• dip the strip for half a second in the compost tea (the liquid collected beneath your wormery);
• take it out and immediately compare the colour with the scale provided (pH 1 to 14);
• read the result in a few seconds.

Do not use the strips in overly diluted solutions (less than 0.01%), as these distort the reading.

Yes, and the pH Test is still very simple: mix a little vermicompost with water, about 1 volume of compost to 4 volumes of water, then dip the strip in it for half a second and compare the colour with the scale.

Handy when you're collecting very little worm tea, which is actually a good sign: a well-balanced wormery produces little liquid, and the first month usually yields none.

All our advice: How and when to harvest vermicompost and compost tea?