Light vs Dark Roast Coffee: What's the Difference?

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The same green coffee bean can taste completely different depending on how long it's roasted. Here's a simple guide to light, medium and dark roasts so you can find the one you'll love.

What roasting does

Raw coffee beans are green and grassy. Roasting heats them until sugars caramelize and hundreds of aroma compounds form. The longer and hotter the roast, the more the bean's original character gives way to roasty, caramelized and smoky flavors.

Light roast

Light roasts are pulled from the roaster early. They're lighter brown with a dry surface and taste bright, fruity or floral, with more noticeable acidity. They're the best way to taste where a coffee came from.

Medium roast

Medium roasts balance the bean's natural flavor with caramel sweetness and a fuller body. They're the most popular everyday roast โ€” think breakfast blends and many single origins.

Dark roast

Dark roasts spend the longest in the roaster. They're deep brown, often with an oily sheen, and taste bold, smoky and bittersweet like dark chocolate, with low acidity and a heavy body. French Roast is a classic example.

Does dark roast have more caffeine?

Not really. Caffeine changes very little during roasting. Because dark-roasted beans lose more mass, a scoop of light roast can contain slightly more caffeine than the same scoop of dark roast โ€” but the difference is small. Choose by flavor, not caffeine.

Which roast should you choose?

If you like bright, fruity flavors or drink your coffee black, try a lighter or medium roast. If you love bold, chocolatey coffee or add lots of milk, a dark roast stands up best. Not sure? A sample pack lets you compare side by side.