Fee Brothers Grapefruit Bitters Review Smells strongly of grapefruit unsurprisingly, maybe a note of cardamom, and cinnamon. There's also some sort of perfume quality in the nose, I'm not sure what it is, but it's less of a "note" and more of a characteristic, something about how it reaches your nose. A bit hard to explain. Smooth mouth, thick, almost creamy. Really coating. Very fast, but complicated evolution. I immediately got a bright citrus note, definitely some grapefruit, but also lemon zest. Then I get a deep floral component, multilayered, maybe lilac, honeysuckle, violet, and then the bitterness is very late in the evolution, that's when I get a bit of cardamom, maybe even a hint of celery seed. 7/10 will get used behind my bar. So what are bitters? Why do you use them in drinks? Bitters are a traditionally alcoholic spirit, often in small bottles (usually 4-6oz, but sometimes you might see a 16oz) infused with botanicals, spices, flowe...