What are green coffee beans?

caribana-green-coffee-beansCoffee beans are the seeds of the coffee tree, and are found inside fruit called ‘cherries’ or ‘berries’. The berries are harvested, normally by hand, when they turn a reddish colour, which indicates ripeness. They’re then processed to separate the beans from the flesh. Green coffee beans, also called ‘raw’ or ‘unroasted’ beans, are coffee beans that have been through the process of picking, processing and drying, but haven’t yet been roasted.

Once they’re dry, the beans take on the slightly green colour which gives them their name. They have none of the rich, dark colour or smell normally associated with coffee beans, which they’ll acquire during the roasting process.

They’re then sold as green beans to the retailer or end consumer, who carries out the final stage of roasting, to get as fresh a brew as possible.

Although roasting the beans at the last minute can mean more work, it’s really the best way to get the maximum flavour from your coffee. The unroasted beans are also less porous, and keep fresher longer than roasted beans, so although you may buy your green coffee beans in bulk, it’s best to roast them in small qualities as you need to use them.

It’s possible to roast your own beans at home on the hob in a skillet or frying pan, but most regular users have a domestic or commercial roasting machine, which guarantees evenness and consistency. Green beans are becoming increasing popular, and with the advent of online sales are more widely available than ever before.

If you’d like to try roasting your own coffee beans, why not browse our range of green coffee beans? Roasting your own means that you can control the strength and intensity of the roast, so that your cup of coffee’s exactly the way you like it.

 

 

 

 

Roasting green coffee beans at home

home-roast-green-coffee-beansEvery coffee lover knows that freshly roasted coffee beans pack the most flavour. With modern vacuum packing and storage techniques, most commercial suppliers do a great job of delivering ready-roasted coffee that’s still fresh tasting and vibrant, and buying pre-roasted beans is far more convenient. If you’ve never tried roasting your own raw, green coffee beans, though, why not give it a try and see if you can tell the difference?

Roasting the green coffee beans forces water out, causes them to dry and expand as well as taking on a rich, dark, shiny colour and complex flavour. The best way to roast at home is to buy a home roasting pan or electric roaster, which will give you a consistent result. For your first try, though, use a heavy based skillet or frying pan, and make sure you’re in a well ventilated area.

Take a handful of your usual roasted coffee beans to use as a comparison, then switch on your hob to a medium setting. The ideal roasting temperature is around 250 degree celsius, but it’s important not to scorch the beans with too high a temperature. Add around 225g of green coffee beans. If possible, use a sugar thermometer to measure the temperature of the pan before adding the beans.

For a consistent roast, the beans must be kept moving, so keep stirring them continously. After a few minutes, they should start to jump and crack in the pan. Now is a good time to open a window! Keep moving the beans moving around until they’ve reached the same colour as your comparison beans, then take the pan off the heat immediately.

Tip the coffee beans into a colandar, and shake  it vigorously to remove any chaff and debris, and help cool the beans down. When completely cold, store and grind the beans as usual.

 

Roasting green coffee beans commercially

Green, unroasted coffee beans
Green, unroasted coffee beans

If you’re a coffee connoisseur, you’ll know that the best way to get the freshest tasting cup of coffee is to buy green or raw beans, and roast them yourself in small quantities before grinding and using them quickly. This also means you can control the depth of roast and flavour according to your personal taste.

If you’re roasting your beans for a commerical business such as a restaurant, cafe or coffee retailer, you’ll need to achieve a consistant roast so your customers always know what they’re getting. To do this, you’ll need a commerical coffee roaster. Modern technology means than you can now buy compact machines suitable for ‘light commerical use’, which run from a 13 amp plug and roast around 300g of green coffee beans at a time.

Things to consider when roasting your own green coffee beans

You’ll need to position your coffee roaster in a well ventilated area in your shop or cafe, or install a ventilation duct. The roaster operates at very high temperatures, and also produces hot gases which will need to disperse. You should always stay with the machine during the roasting period, which can be anything up to 18 minutes depending on the depth of roast required, the quantity and the origins of the green coffee beans. Most commercial roasts have a clear chamber for the beans, so that you can see how the roast is progressing and alter the timings if necessary.

Advantages of a commerical roasterYour machine should allow you to set dials for length of roasting time and depth of roast, giving you a consistant result every time and roasting in small quantities means the freshest coffee.

Disadvantages

The machine will require a thorough cleaning every time it’s used, to remove any coffee debris which could otherwise build up and cause problems.

Ready to get started? Visit our coffee beans page for great quality green coffee beans.