OK, I'm a coffee noob so try not to laugh too hard. If I put this Cafe Bustelo in my little 4-cup Mr. Coffee, will it come out tasting awful? I'm not sure if 'espresso' refers to the blend or how finely the coffee is ground. Also, what do youse guys use for a coffee travel mug? I tried a stainless steel one, but my coffee tasted like metal :yuck:. Yes, I washed it very thoroughly before using it.