For reference, a Starbucks "grande" is 16oz. Starbucks has 6 sizes and the grande is the larger of the two middle sizes. A quick search of the first page of res

For reference, a Starbucks "grande" is 16oz. Starbucks has 6 sizes and the grande is the larger of the two middle sizes. A quick search of the first page of results on Amazon for "coffee mug" shows most of them are 16-20oz. Five, 16oz cups is 80oz, and there's 33oz in a liter. I'm not trying to disagree with you, just describing how I got my number, which is different than your reasonable implication.