https://coffeegeek.com/blog/techniques/water-filters-saved-my-espresso-machine/ The World's Most Read Coffee and Espresso Resource Thu, 28 Aug 2025 09:39:10 +0000 hourly 1 https://wordpress.org/?v=6.9 https://coffeegeek.com/blog/techniques/water-filters-saved-my-espresso-machine/#comment-2136 Thu, 28 Aug 2025 09:39:10 +0000 https://coffeegeek.com/?p=55672#comment-2136 Thanks for the article. I’m curious about the science behind magnesium and zinc being important for extraction. Do they help extraction because the charge of the ions helps pull out some of the compounds from the coffee? Also, when you say that magnesium is good but zinc is real good, what do you mean by that? Is the effect of zinc somehow different that the one of magnesium?

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