Coffee-beans, are not. They are seeds. They are housed in the coffee fruit.
Coffee-tea, is. The tea is made from either the leaves of the coffee plant or the dried skins of the coffee fruit.
We speak of coffee-beans because of what they resemble, not what they are. We hear coffee-tea and it sounds wrong.
Consensus reality is agreed-upon reality. Sometimes we need to change that agreement, by noticing what is real.