When it comes to measurements, the everyday kind that deal with things like air pressure, tire pressure, blood pressure, etc., there is no such thing as an absolute accuracy. And yet, as with most things, scientists are able to come up with a relatively accurate way of gauging these things by measuring them relative to other things.
Quick Answer. Eating coffee grounds is not bad for an individual's health, according to Sandeep Godiyal for Natural News. In fact, coffee grounds are very high in antioxidants and nutrients, even when they are used to make coffee.
My worms are out eating my vegetable scraps. I'm not complaining, that was the point of my worm bin to begin with. Now I'm wondering if the coffee grounds can go the worm stream instead of the garbage stream too. I've only ever used them sparingly in the worm bin because I'm worried they are too acidic. We produce about 6-9 table spoons of coffee grounds everyday.