Green coffee defects are the flawed beans and foreign matter that end up in a sack of coffee: black beans, sour beans, insect-damaged beans, broken pieces, bits of husk, even stones. They matter for two reasons. They decide what grade a coffee earns, and the worst of...
Gayo vs Mandheling is one of the most common comparisons roasters make when they buy Sumatran coffee. Both are Arabicas from the highlands of northern Sumatra, both are usually wet hulled, and both have the heavy body and low acidity Sumatra is famous for. But they...
