The Kaffelogic Nano 7e is the same product as the Nano 7. The only difference is that it comes fitted ex-factory with a 220-240v element and with CE certification.

Add a scoop of green beans and press start. The Nano 7 will take it from there. Want to roast darker? Press + before start. Want to roast lighter? Press - before start.

The Nano 7 plays back a roast programme that has been designed by an expert, making artisan-quality roasting accessible to everyone. When you buy a Nano 7 you get access to the full suite of design tools, but for daily use it's as easy as pressing a button.

In general green beans of comparable quality cost about half as much as roasted beans. With moderate use your coffee roaster should pay for itself in about 3-5 years, after which you will feel the savings every time you roast. We even have customers who have recovered the cost of their Nano 7 by selling roasted beans to their friends.

Of course if you keep to the same budget you will be able to buy vastly superior beans, in which case you will taste the extra flavour every time you roast.

Green beans are readily available online or from many roasteries. We did start making a list of Internet suppliers, but it is growing so fast the best option is just to search for 'buy green coffee beans' and take your pick. Better still, keep it local: pop in to your local roaster and ask. You can also get tips for where to get particularly good beans from our community forum.

Green coffee can usually be stored for up to 12 months, sometimes longer, especially if it is from the latest harvest. Store your green coffee in a dry, well ventilated environment.

Freshly roasted coffee is packed with flavour, especially at its peak. It is difficult to manage consuming commercially-roasted coffee always at peak flavour, but easy if you roast your own in small batches. Being in control of the freshness and style of the roast is actually the secret to achieving the highest form of coffee.

Specialty coffees are the best available in the world. Roasted to perfection they are incomparable. For the same price as ordinary roasted coffee you can get extraordinary specialty green beans and astonish your taste buds.

Roasted coffee is only at peak flavour for a few days. It makes sense to roast a batch that you will use up in a few days or less. You wouldn't grind a whole lot of coffee in advance, and now there is no need to roast a whole lot in advance either. With Kaffelogic it's quicker to put on a roast than it is to brew a coffee. Roast on demand is now a reality.

No. It depends on the roast profile. Kaffelogic has developed different profiles for immediate consumption and 3-5 day resting. For more on this topic see this blog post: Programmed peak flavour.

Yes it does. You can taste the difference when the roast is just right - the flavour almost leaps out of the bean. There are thousands of chemicals that contribute to the coffee experience, most of them are created during the roast and many of them are delicate long chain molecules. Just as opening the oven door at the wrong time will cause your pavlova to collapse, variations in the heating of the beans during roasting can disrupt the formation of those molecules. Get it right and the magic starts to happen. That's why the master artisanal roaster is so highly valued, and why sophisticated control software is so important in an unattended roasting system.

A roast profile is a set of instructions that tells the roaster exactly how the coffee should be roasted. It includes a time-temperature curve, a time-fan speed curve, and a collection of other settings that ensure optimal conditions for the coffee and roast repeatability. There is a default profile built into the unit, and additional profiles can be stored as files on a USB memory stick for loading into the roaster.

We recommend you start with the built in profile, and then try the core profiles supplied with your Nano 7. First read the guide to help you select the correct profile. Then place the supplied memory stick into the roaster, press the 'profile' button until the right profile name comes up on the screen, and press the start button.

If you want a little more adventure download user-submitted profiles from our community forum. And for those those who want to explore: the Nano 7 records roast logs and allows you to examine and edit the underlying profiles. Our profile design software Kaffelogic Studio and documentation are available on our support page.

The Kaffelogic roaster produces about the same amount of smoke as frying food. The smoke is barely visible and a domestic range hood extractor fan is plenty sufficient for removing it from the kitchen. A good extractor fan will eliminate all smell; a less effective fan will leave you with a pleasant whiff of roasting coffee. If you do not have an extractor fan we recommend running a domestic air purifier in the same room. Otherwise you will notice quite a strong smell of roasting coffee. Some people like it, others are not so keen on it. Without some form of ventilation or air filter we recommend roasting only one batch at a time.