The truth is the higher the number, the darker the roast. This means you’ll get a stronger flavour profile that’s usually more bitter, punchier and intense. Dark roast coffee is roasted past the second crack (the ‘crack’ is when the coffee makes an audible pop like popcorn, most roasts will reach the first crack). This allows for more natural oils to be released which creates a much punchier, more full-bodied flavour. Lighter roasts on the other hand usually offer drier, fruitier flavours.
The numbers on the coffee strength scale tend to reflect the intensity of the flavour rather than the caffeine content, with the higher numbers more bitter and dark and the lower numbers lighter and fruitier. So, with that logic, you can work out what the weakest coffee is.
Oh, and if you’re wondering, you can also use this scale to work out the strongest instant coffee too!
The flavour of your coffee owes a lot to the roasting type. Before roasting, coffee beans are actually green and possess a grassy scent. It’s during the roasting process that different roast profiles are developed and each blend is carefully crafted by master roasters, to ensure each sip is as delicious as the last. Generally, the longer beans are roasted, the more natural oils are released from the coffee beans, giving them a stronger and more bitter taste.
Did you know instant coffee is known to contain less caffeine than brewed coffee? This is because of the difference brewing methods involved, which leave the grinds in contact with water for longer.
Here’s a rough guide if you’re wondering what the coffee strength numbers mean. But bear in mind, different brands may scale their coffees differently.
There are a few factors which may affect the caffeine content of your coffee. Some start before you even get your hands on it, but it’s worth knowing that the way you brew it may have an impact too.
When it comes to knowing coffee, understanding strength and flavour will make your world so much rewarding.
That’s our guide on the strength of coffee, and what the scales mean! Take a look at our article on Coffee Cupping to find out more about coffee tastes and flavours. Or, want to find out more about coffee? Check out our favourite coffee facts next.