Now available on the App Store!!!

April 10, 2015

Humboldt Earth Technologies is pleased to announce a new mobile app for gardeners who want to brew the best possible compost tea for their veggies, herbs and fruiting plants. The Compost Tea Calculator (CTC) is a unique addition to any horticulturalist’s toolkit and represents an intriguing and forward-thinking fusion of… read more »

Now available on Google Play!

March 12, 2015

We are proud to announce our mobile app is now available on Google Play. You can search for it using the keywords “Compost Tea Calculator”. It will be available on the Apple store later this month. We are looking forward to taking bold new steps in advancing biological agriculture.