Can I use espresso coffee for a Mr. Coffee or other regular drip machine?
You can certainly use espresso beans, but you might want to grind the beans for a drip machine (an espresso grind will likely be too fine for the drip brewer). Since espresso beans are simply a recipe (blend and roast) that a roastmaster believes is ideal for espresso, it is largely a matter of individual taste; a drip-coffee consumer might, indeed, find the espresso blend to be perfectly suited to his/her drip-brew preference.