Okay, I just measured mine and it was a HEAPING tablespoon. Remember that I said above I would test it...because I was just visualizing it, not really knowing.

My measurement is for a drip coffee-maker. Not a perk. I'll call Mom and ask her what she uses since she does the perk, but I'll guarantee you that she'll say, oh I just do a little of this...or a tad of that...she doesn't measure anything.