Water really matters when you’re brewing coffee. Different waters can dramatically change how a single coffee will taste. But what is the right water for the best coffee? In this episode I will give you the answer, but I will first take you back billions of years to tell you the story of a single mineral and how it's responsible for making our coffees taste lame. Because here’s the thing: water science is chemistry, and chemistry is very complicated and easily forgettable. But with a great story, I’m hoping you’ll remember!In the second half, I show you why Christopher Hendon’s book Water for Coffee made a big splash in the coffee community, but also why some academic chemists are critical of the book, and how this all manifested in the creation of the Specialty Coffee Association’s Water Quality Handbook. And, to cap it all off, I offer you some environmentally conscious ways to get hold of good water for coffee, so your coffee brews can finally explode in flavour. —---Please spread the word about The Science of Coffee!Follow me on Instagram and tag me in an Instagram story - https://bit.ly/2Mlkk0OWrite a review on Apple Podcasts - https://apple.co/3sf87MVLeave a 5 star rating on Spotify - https://spoti.fi/3yHkjcVDiscover this episode’s sponsor BWT’s water filtration products. I use their Penguin cartridges (http://bit.ly/3Xiuq2a) and cafes can use their BestAqua ROC (https://bit.ly/3EPLIx9)Read Marcia Bjornerud’s amazing book, Reading The Rocks: https://bit.ly/3EQIYj4Want more to listen to more documentary podcasts about coffee? Check out Filter Stories - https://bit.ly/3zb5vnOWant to go deeper into water chemistry? SCA’s Water Quality Handbook: https://bit.ly/3TyWM5X BWT White Paper on the effects of magnesium (German): https://bit.ly/3TqOFbqHow to add magnesium to your soft water out of the tap (scroll to bottom): https://bit.ly/3s5WYOmChristopher Hendon’s Water for Coffee: https://amzn.to/3Tbo3LSCertificate of Advanced Studies at Zurich’s Coffee Excellence Center online course: http://bit.ly/3xlIOel Read ‘The Craft and Science of Coffee’: https://bit.ly/3zb7bN8 Barista Hustle's Water course - https://bit.ly/3z8zSKAJames Hoffman's water video - https://bit.ly/3Duxn8fConnect with my very knowledgeable guests: Samo Smrke - LinkedIn (https://bit.ly/3EKrjtg) and Instagram (https://bit.ly/3IdrfRz)Chahan Yeretzian - Linkedin (https://bit.ly/3S4emO1)Frank Neuhausen - LinkedIn (https://bit.ly/3gg4Fie)Marcia Bjornerud - Academic profile (https://bit.ly/3eCYuEi)Christopher Hendon - LinkedIn (https://bit.ly/3EXULMe) and Instagram (https://bit.ly/3eAUuo3)The Science of Coffee is made possible by these leading coffee organisations:BWT Water and More - https://bit.ly/3EEpuxNMarco Beverage Systems - https://bit.ly/3T2YDzYTrabocca - https://bit.ly/3Tjn8bVEversys - https://bit.ly/3CBkp6XOatly - https://bit.ly/3exvlKSFiorenzato - https://bit.ly/3T3nmUQ