Roast level is one of the first things you see on a bag of coffee, and one of the most misunderstood. It isn’t a measure of quality or strength, it simply describes how far the roast was taken. Green coffee tastes grassy and flat, and it’s the heat of the roaster that turns it into something worth drinking. A light roast is stopped shortly after first crack, the moment the beans audibly pop as moisture escapes. A dark roast keeps going, often close to or into second crack, and every extra minute changes what ends up in your cup.

A light roast keeps the coffee’s origin front and centre. This is where you taste what the variety, the altitude and the processing have given the bean: bright acidity, fruit, florals and a lighter, cleaner body. It’s why a natural Kenyan or Ethiopian can taste like grapefruit or plum. Light roasts usually shine in filter brewing like V60 or AeroPress, and they can make vibrant espresso too, though they can take a bit more patience to dial in.

In a dark roast, the roast itself takes the lead. Longer development caramelizes more of the sugars, bringing out chocolate, caramel and toasty notes, a heavier body and lower acidity, with more bitterness the further it goes. Some of the origin character fades along the way, but the result is a comforting, forgiving cup that works beautifully as espresso and with milk. And despite what many people think, dark doesn’t mean stronger: by weight, the caffeine content is about the same.

So which is better? Neither. It comes down to how you brew and what you enjoy in the cup. Whatever the roast, match your grind to your brewer: coarser for filter methods like V60, finer for espresso. And if you can’t decide, try both side by side. Brewing a light and a dark roast together is a fun way to understand coffee more deeply, a bit like a wine tasting with friends. Turn it into your own coffee tasting and pay closer attention to what you smell and taste in every cup.