I blow away guests to my house, not with my DT, but my outstanding coffee !!! I use RODI water and an AeroPress coffee maker, see https://en.wikipedia.org/wiki/AeroPress. This is just so versatile. I can do an expresso shot, filtered coffee, play with any parameters like I see fit, why - reminds me so much of reefing !!! Any other coffee fanatics? Have you tried using RODI water? If not, try it ASAP! I use the inverted method - I like strong black coffee - sweetened with real Maple sirup No more wasted coffee Can be used for tea also Some videos !!!