Coffee bean such fatty acids – 3-methyl-valeric acid (sour, green-herbaceous, unpleasant odor), acetaldehyde (pungent-nauseating odor, even when highly diluted, present in dried green coffee beans at concentrations of about 5 mg/kg), propanal (choking effect on respiratory system, penetrating-nauseating), butanal (nauseating effect, present in dried green coffee beans at 2 to 7 mg/kg), or pentanal (very repulsive nauseating effect). Coffee bean A coffee bean is a seed of the coffee plant and the source for coffee. It is the pit inside the red or purple fruit often referred to as a cherry. Just like ordinary cherries, the coffee fruit is also a so-called
Coffee-leaf tea Coffee-leaf tea Coffee-leaf tea is an herbal tea prepared from the leaves of the coffee plant (either "Coffea robusta" or "Coffea arabica"). These leaves, after being roasted, can be ground up or crumpled, then brewed or steeped in hot water in a form similar to tea. The resulting beverage is similar in taste to green tea, but with less caffeine content than either regular tea or coffee. Coffee leaves closely resemble the leaves and stalks of Paraguay tea ("Ilex paraguariensis"). In some regions, such as Sumatra and Ethiopia, only the leaves are taken from the coffee plant and the berries