Absolutely fantastic post, as far as my knowledge goes (and I have been working in the coffee industry well over 22 years) full correct and comprehensive. I have to admit the latter part about DNA and chemicals is a bit over my head but the first part spot on.

The only comment I would add, is regarding Arabica vs Robusta coffee beans. Robusta is often seen as the "cheaper" alternative to Arabica, and people will often say they only want to buy Arabicas. In reality the reason Robusta is less expensive then Arabicas is it grows at much lower altitudes - making it much easier to cultivate and harvest - the reason it can do this is because it has a higher content of a natural pesticide that protects the Robusta trees from being damaged by insects - this natural protection is Caffeine - which makes Robusta coffee beans ideal for a brew to keep you awake. Often the coffee's marketed as Seriously Strong, Bullet Blend, Builders Coffee etc are a dark roasted Robusta giving bitterness kick from the dark roast and caffeine which the Robusta has a high percentage of.

Robusta is also very often found in the coffee blends used for brewing espresso - the base for a cappuccino, latte or flat white with the pretty poured art in. The reason for this is Robusta helps increase the the "crema" of an espresso - the creamy head on this pressure brewed coffee resulting from the extracted oils and flavonoids from within the finely ground coffee - and the crema is used for the pretty patterns you often see - as in this post a Tulip being poured above.

#thealliance #witness