While we’re talking beans, in my first years as a barista, I was told getting my own grinder would yield the biggest shift in the flavor of my morning coffee—and that advice wasn’t wrong. Sure, it makes the journey to my morning cup take longer, but it also makes my coffee taste fresh and strong. Plus, I get the extra bonus of the prolonged aroma of fresh grounds before I even start brewing. While some people use spice grinders for this purpose, coffee-specific models give you more control over grind size—which is important, because depending on your brewing method, the size of the grind should change. I love my Hario handheld, but there are also options out there for electric burr grinders, if you have the space and budget for one.