J I buy this T Disc BOILING to keep using my tea bags as more economical than t Disc makers and which are also too full-bodied in addition to the in short time coffee time announce the amounts on the T Disc does not match the real amount because I'd especially the usefulness of the quantity of 250 ml (mug) Well c is less than around 34 ml which means that I have to complèté has EVERY time the missing dosage which is not convenient because I l 'd buy quantity for the battery and remove my mug! The ad does not match the amount!