When a blind taste test is conducted, it suggests that mostly people cannot make a difference between a decaf and a regular cup of espresso coffee if both the varieties are well brewed and processed properly. However, what about those who can make the difference?
One of the methods of getting rid of caffeine from the coffee is to treat coffee with hot water, subsequently followed by methylene chloride rinse.
You may be totally unaware of the fact that the coffee you get has already been processed with water previously in an espresso maker, on several occasions. Coffee berries after picking are rinsed properly for removal of their outer fruit covering. This softens the outer fruit, which is constantly washed, to purge the residual pulp.
Warming of green unroasted beans in hot water or steam, which opens the pores of the beans, is the initialization of chemical removal of caffeine. Subsequently, the beans are washed with methylene chloride that binds to caffeine to flush it away.
On the other hand, beans soaked for several hours in hot water percolates caffeine into the bath. Addition of methylene chloride is followed by the removal of the beans from...
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