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.
Coffee Grounds are organic, and will slowly decompose in the gardenâsounds like a good mulch. Coffee grounds are quite fine, and as such they compact easily. Anything that compacts will reduce the amount of water/rain and air reaching the soil. This is not good for your plants or the other soil biota.