The Brew Blog

Bitterness and astringency are not the same thing — and fixing the wrong one makes it worse. Here's what each one is, what causes it, and how to fix it.

Most of what you experience as coffee flavor is actually aroma. Here's the chemistry behind coffee fragrance and how to access it deliberately.

Roast level determines whether you taste the coffee or the roast. Here's how light, medium, and dark roasting mask or reveal what's actually in the bean.

Same bag, same grinder, different cup — here's why coffee tastes different every day and which variables to control to get consistent results.

A practical guide to the primary flavor categories in specialty coffee — fruity, floral, sweet, chocolatey, roasted — and what produces each one.

Learn to taste specialty coffee like a professional — the vocabulary, the framework, and the practical techniques for getting more from every cup.