I'm an ex-barista and now a professional coffee snob, and I'll be the first person to tell a coffee newbie of the horrors of using pre-ground coffee. But there's only so much I can say.

If you've got one of the best coffee makers — like the Breville Luxe Brewer — or the best espresso machines — like the Breville Bambino Plus — you can easily make barista-quality coffee from the comfort of your kitchen. And I'm here to help!

The most important thing? Grinding coffee correctly. It can be really hard to know what the correct grind size is. But for the sake of science, I purposefully used the "wrong" grind size for espresso, drip, and pour-over. This is what happened. Don't make the same mistakes as me!

Can you use the same coffee grind for everything? The methodology

For this experiment,

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