[Riley]

I have yet to find any coffeehouse that makes coffee as strong as I do. (Black, nothing in the cup but coffee)

If the first sip doesn't force you to involuntarily emit a sound like 'yuuurgghk'and shimmy a little bit, it isn't really coffee, to me.

[Poohbah]

Navy coffee test:

Insert spoon vertically into coffee. Spoon should stand up vertically without support.

If the spoon flops over to one side: coffee is too weak.

If the spoon dissolves: coffee is too strong.

[CatoRenasci]

In the Army, we used to say a good cup of coffe was one that was strong enough to walk around the mess hall and shake hands with everyone there.

I've also heard the one that Navy coffee should hold up, but not dissolve, a stainless steel spoon.

[AmishDude]

If you can't chew it, it's not strong enough.