Coffee fermentation is already a very well understood operation: this is partially why high quality beans are a commodity item (ie. selection of microbe strains

Coffee fermentation is already a very well understood operation: this is partially why high quality beans are a commodity item (ie. selection of microbe strains). It is also a food safety issue, so you have lots of attention from authorities too (including the UN). The rest is just a branding a pricing exercise (along with roasting, which is also a well understood process). The whole trading process is not unlike trading Brent barrels and selling them through different oil companies and stations. Ask Nestlé.