alt Hacker NewsThe title says "quality" but the summary seems to say it only measures the "strength" oand "darkness of roast". Certainly won't measure how good it tastes. Given these are the two properties purportedly measured, I imagine you'd get the same results regardless of tastiness and age of the coffee or beans.
> Given these are the two properties purportedly measured, I imagine you'd get the same results regardless of tastiness and age of the coffee or beans.
Right, but another way of putting it, it might provide useful signal if you hold "age of the coffee or beans" and other such factors constant :).