Why copper or copper alloy tools?
- No maintenance necessary.
- No rust formation, therefore lasts forever. On the subject of corrosion, see: kupferinstitut.de
- Not magnetic.
- Sustainable – for a healthy breeding ground.
Trace element fertilization
Copper and growth
Mode of action
verdigris Colloquially incorrect term for the green ageing layer on copper surfaces, thepatina
Testimonials
https://www.boden-fachzentrum.de/bodenqualitaet/boden-naehrstoffe/bodennaehrstoff-kupfer
Wikipedia:
Biological properties
Compared to many other heavy metals, copper is only relatively weakly toxic to higher organisms. For example, a person can consume 0.04 grams of copper per day without suffering any damage to their health.[38] In its free form, not bound to proteins, copper has an antibacterial effect; as with silver, this is referred to as the oligodynamic effect, which is why, for example, flower water stored in copper containers or in which a copper coin is placed does not turn foul so quickly.

Venus symbol: alchemy symbol for copper
Copper, gold, silver and tin were the first metals known to mankind during its development.
Later, copper was alloyed with tin and lead (we explicitly use an alloy WITHOUT LEAD!) to make bronze. This harder and technically more resistant alloy gave the Bronze Age its name. 3000 B.C. – 1200 B.C.