Compost Tea Calculator

is an innovative mobile application (app) for brewing actively aerated compost tea (AACT). Its functions can be applied for personal garden use and also for larger agricultural and farming practices.

A partnership was formed to create a company called Humboldt Earth Technologies™ (HET), which is responsible for overseeing the development of The Original Compost Tea Calculator®.

Undergoing extensive research and evaluation, we have carefully studied compost tea recipes all across the industry.

We have then calculated those average means against our local recipes, which have been formulated and field tested in Humboldt County, California. They have been examined and approved by local soil scientists and biologists for horticultural use. Our recipes provide well-balanced ratios of essential nutrients and microbial life, which in turn promote plant growth, vigor and yields as well as an amplified resistance to pests and pathogens. This app is comprised of advanced biological algorithms that are progressive in advancing organic and biological farming practices.

Aiming to keep a creative attitude, we are working largely to stay on the cutting edge of the compost tea industry. If you would like to get in touch with us for any reason, including partnerships or cross-promotional advertising please don’t hesitate to contact us.


Our Motivations

Guided by the idea to make compost tea easier to make, we have brought a highly innovative app to the marketplace to streamline this data processing. Based on our everyday experience as tea brewers, we know it can be quite a task using worksheets to brew with. Therefore we sought a way make our recipes well rounded and applicable across all scales of industry. Our app is highly accessible in the ways of usability, functionality and is enjoyable to use. We aim to maintain a highly versatile app that will be continuously updated and upgraded with new recipes and features as our business evolves.

Mission statement

HET, by design, is providing integrated management platforms for sustainable living systems. The inception of our philosophy is showcased via The Original Compost Tea Calculator®.

We are consistently striving to stay on the leading edge of farm and garden technology.

This means expansion on more than one level. Meaning:

  • We search for expansion in knowledge. Even as professionals we have to be open minded to new ways and ideas of development every day. Our app is meant to be sold everywhere in the world. Therefore we have to keep up our intercultural capability as well as the understanding of foreign markets.
  • Expanding our human resources to raise our efficiency and creative potential. Responsibly growing our business is a task, that shouldn’t be underestimated in any way. We like to grow and we like to improve our environment.
  • Improving our networks. To acquire a high accessibility for the user we strive to keep close contact with our partners. Improving these partnerships means greater accessibility for our users and raises the level of communication and interaction.
  • Expanding into future markets. Widening our product range will give us the opportunity to gain a greater customer base with every app.

Future Plans

Recent research has shown empirical evidence that the biological and organic fertilization industry is growing at a rapid pace. It is our interest to stay at the forefront of pioneering new technology that assimilates new procedures, ingredients and techniques for brewing compost tea. We can then integrate this data into The Original Compost Tea Calculator®.