good to/till the last drop

Of a beverage, especially a cup of coffee, having an excellent taste from beginning to end. Typically associated with coffee because of the brand Maxwell House using "Good to the last drop" as its slogan. Wow, what kind of coffee did you make? It was good to the last drop! I tell you, champagne is good till the last drop! Pour me another glass, would you? Dang, that milkshake was good to the last drop. That's why I never get a different flavor—this one is just too good!