Scientists Have Discovered the Key to Making Perfect Espresso Every Time

Espresso heads have long argued over how to achieve the ideal pull, from which beans to use, how to grind them, and what snazzy machines to invest in. Now, a new study published in material sciences journal Matter seems to have identified the key to the perfect pull, and it’s much more simple — and inexpensive — than you might think.

According to the study, researchers discovered that adding a splash of water to coffee beans prior to grinding them results in a more delicious and more consistent espresso. The scientists say that this technique has the potential to help industrial coffee brewers and baristas alike overcome a major obstacle in brewing espresso.

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