The beans are able to extract the maximum flavor from water that falls within this range.
Make the switch to a French press or pour-over method (using a Chemex or a ceramic filter),
in which water that is just off the boil is poured over ground beans and allowed to steep for three to four minutes.
Prices for these are often under $30, which is far lower than the typical price of an electric brewer.
Purchasing beans that have already been ground is not a good idea.
Coffee beans begin to release their complex tastes the moment they are ground into a powder.
The longer you wait for the beverage to brew, the more the flavor will have been eradicated.