Average amount of caffeine in a rounded (heaped) teaspoon of Buendia coffee?

Can be seen here Amazon.com

I don’t have any information about that brand in particular, but in general, from this link:

1 rounded teaspoon of instant coffee (1.8 grams in weight) contains 57 mg.

So one rounded table spoon probably contains around 171 mg.

my question is about a teaspoon.

My subconscious expetations must have altered my perceptions. I make my wife large coffees using a tablespoon. So for someone not quite as caffine addicated as we are I guess 1 rounded tsp is just 57mg.

it will also depend on the darkness of the roast (more roasted, less caffeine) and the fineness of the grind (finer means more density, or weight of coffee per volume)