Coffee Beans for Coffee Machines
When buying an Italian coffee machine it’s really important that you don’t forget about the beans. Beans are at the heart of every coffee so make sure that you always use beans that you absolutely love.
The search for great beans is an endless journey. To read about my own Ethiopian coffee adventure click here
There are two coffee species used in coffee bean production – Coffee Arabica and Coffee Robusta. Coffee Robusta is easy to grow at low altitudes and easy to harvest. This makes it the most common choice for instant coffees and cheap supermarket whole beans. Coffee Arabica is the “good stuff” and most coffee beans labelled "specialty" are 100% Coffee Arabica.
Coffee Arabica specialty beans are generally hand-picked, organic, and farmed on family or village lots. They are sold via co-ops, and farmers get rewarded with high prices for high quality. This means that specialty beans are not just the right beans for your coffee machine. They are also the ethical choice.
Just like with grapes there are a number of Coffee Arabica varietals. With grapes the varietals include Shiraz, Merlot and Pinot Noir. With Coffee Arabica the varietals include Bourbon, Typica and Caturra. The varietal has a significant effect on the beverage. Now you know about the varietals it’s time to go out and try them all. Go for it :)
Coffee Arabica beans tend to have traits typical of their origin (region). This is because there are common factors in regions such as coffee bean varietals, processing methods and growing altitudes. Here’s a guide to coffee bean traits by origins:
Central & South American - chocolate, caramel, sweet, simple
African – fruit, floral, sweet, complex
Asian – spice, earth, bold
Altitude is another factor effecting your beans. Does higher mean better? Well, that really depends on you and your taste buds.
Higher altitude - sweeter, fruitier and more acidic
The processing method has a significant effect upon the beans. The two main categories for processing are wet processed and dry (natural) processed. Other categories include honey processed and wet hulled. Here’s a guide to coffee bean traits by processing method:
Wet Processed - bright, clean, thinner
Dry Processed - spice, earth, fruit, thick
Roasting profiles are a mix of science and art and it takes a skilled roaster to really squeeze the very best out of a bean. When it comes to an espresso from an Italian coffee machine you can expect the following:
Light roast - high acidity, sweet, thin, simple
Medium roast – medium acidity, fruity sweetness, complex
Dark roast – low acidity, bitter sweet, bold
Single Origin Coffee v Coffee Blends
For coffee purists (yes, that includes me) single origin is the way to go. Exploring single origins is an everyday adventure. However, if you are just looking for a great coffee to drink every day then blends generally have the edge. This is because in blends the beans are combined to “optimise” results in the cup. Here’s an example. A roaster could take a high altitude, wet processed, South American bean that produces a clean, sweet cup and add 20% of a high altitude, dry processed African bean to add a wack of fruitiness. Yum!
Freshness and Storage
A coffee bean is the seed of a fruit, and just as with any fruit, fresh is best and oxygen is the enemy. To protect your roasted coffee from oxygen there are a few things that you should know. Please read my FAQ on coffee bean freshness and storage
I hope you enjoyed my brief summary and I hope this changes the way you that you understand and value quality beans. Also, I hope you will always treat your Italian coffee machine to the very best beans you can find. And good luck on your quest for the perfect coffee bean. It’s a futile quest. You will never find “perfect” but the quest is something that makes the home barista hobby so gripping.
Finding Great Beans
Fresh is best so I highly recommend that you find yourself a local roaster. There are plenty of great roasters around.
I have been roasting my own coffee beans for 15+ years and I have always enjoyed the roasting process. I now have a contract roaster roasting the K Bean blend. To learn more about my coffee beans please click here