4 ms·another possible factor here is that roasted beans aren't so stable over time, so "the same" materials, aren't.by ska 4y agoanother possible factor here is that roasted beans aren't so stable over time, so "the same" materials, aren't.fabian2k 4y agoI mean differences from one day to the next. For longer time frames this of course could affect taste.ska 4y agoAh ok,then my next thought is grinder. For what it's worth I found a huge difference in consistency after getting a decent quality burr grinder.