"Why is my machine so loud?"に関する回答Looks like everyone is trying to blame the water - but if it makes horrible loud noises when brewing, as mine does, it appears more a manufacturing defect than an "operator" problem. I would guess Keurig changed factories and the new one is using inferior parts. And this has apparently been going on for a couple of years, so it is apparent the manufacturer is in no hurry to fix it. Once we decide to NOT replace our Keurig coffee maker and hit the manufacturer in the pocket book - they will start paying attention.