What's the point of charcoal

Basics: biochar.
What is that?

Biochar does not need the big entrance. It also unfolds its effect on small things, such as your own garden or balcony box. Everyone can do something good for their soil and at the same time for the climate.

"Only through composting does dead coal become a living microcosm" (from: Ute Scheub, Haiko Piplow, Hans-Peter Schmidt: Terra Preta, Oekom Verlag 2015).

Biochar alone does not make good garden soil. A handful of healthy earth contains more creatures than people live on the planet: bacteria, flagellates and ciliates, fungi, algae, worms, beetles, larvae, snails, spiders, woodlice…. Biochar provides space for these small organisms to live. It loosens the garden soil, makes it permeable for water and oxygen. In addition, thanks to its huge surface and many pores, biochar is an excellent store for nutrients and water. For biochar to have an effect in the soil, it must first be charged with microorganisms and nutrients, otherwise it is just an empty reservoir. The best way to do this in the garden is to mix the compost with a maximum of 1/5 of the total amount of biochar and wait a few weeks for the mixture to solidify. But that also works with stacked small lattice boxes on the balcony. More on this in this book that is well worth reading.