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Does a coffee grinder make a difference?
James Marinos • Jul 19, 2021
Does a coffee grinder make a difference?
A major part of the experience in enjoying freshly made gourmet coffee out, or at home is in the grind. The smell of freshly ground coffee in itself is evocative of luxury and homely in equal measure. However, when it comes to the quality of your coffee, grinding your coffee beans properly is paramount to your experience, and that's exactly what we are going to explore in this latest article with you.
The reason we grind coffee is so that we are exposing enough of the bean's surface area to extract flavour when brewing. The finer the beans are ground, the more surface area for your water to work with. This is important when considering how finely your coffee should be ground for different brewing methods. Each brewing method is far from the same, requiring a variety of brewing times and sizes from your coffee grounds. However, one key aspect to remember is that the finer your grind, the faster your coffee brews.
Before we explain what grind size you should use for your brewing method, it's important to explain what to look for in your grinder.
THE BLADE GRINDER
Blade grinders or 'whirly blade grinders' as they are also known, are the most cost effective and commonly used grinder found in the home. The only discrepancy with the whirly blade is that they grind the coffee into varying degrees of coarseness, so some pieces will be larger than others. This will reflect in that the tiny pieces will evoke a bitterness while the larger pieces a sour profile, creating an unbalanced brew. We offer the Delonghi KG49 blade grinder in our online store.
THE BURR GRINDER
Ideal for brewing an optimum grade of coffee, burr grinders boast two adjacent cutting discs called burrs which can be adjusted to change the size of the grounds produced. Because the coffee beans can't escape until the have been cut down to the size of the gap between the two discs, they produce perfectly ground coffee every time. Slightly more expensive, depending on the model, you can be assured that the investment will be worth it, especially for espresso lovers. You can explore our range including the DeLonghi KG79, I-Mini Grinder I-2
and I-Mini Grinder I-1
on our website.
Fundamentally, what you should be seeking to achieve in producing the perfect grind (and cup of coffee), is a uniform grind across all of the beans poured from the grinder. This will allow you to take the coffee dispensed and utilise the beans applicably to whatever your preferred brewing method. We have highlighted how fine, or course your grind should be dependent on your brewing method below.
GRIND SIZE BREWING METHOD
Extra coarse:
Cold Brew Coffee
Coarse:
French Press/Cafetiere,
Percolator
Medium:
Chemex, Flat Bottom Drip Coffee Machines, Siphon Coffee, Aeropress
Fine:
Espresso Machine, Stovetop Espresso Maker, Aeropress
Extra Fine:
Greek coffee
Last but not least, dont forget that when you have ground your coffee, this will have exposed air to the grounds during the grinding process. So be sure to store any left over grounds in a dark container (preferably ceramic), to ensure that they dont go stale.
To discover our range of grinders and coffee machines including french press and chemex coffee accessories, visit the Kokebi Coffee online store here.
Beans stay fresher for longer, and so your coffee should taste better, too. As soon as green coffee beans are roasted, they start to release CO2, which affects the taste. They will oxidise and slowly start to go 'stale' and have a flat taste after a while. When coffee is ground, there is a higher surface area which is exposed to oxygen and that will cause them to lose their freshness faster, so it's best to keep coffee beans whole as close to brewing as possible. Treat your coffee beans similarly to potatoes: store them in a dark, dry place. It's best they are kept in a container or the bag they come in to stop oxygen and moisture getting in.
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