Add a 120 g (or up to 200 g with BOOST) 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.

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.

Our friends at 100 Green Beans are a great place to start: they offer a variety of single-origin green beans in 500 g and 1 kg packs, with an auto-deliver subscription so you're never caught short. With quick shipping and responsive customer service, they can answer any questions you have about green beans. Beyond that, a search for 'buy green coffee beans' turns up plenty of suppliers, and your local roaster will often sell you unroasted beans if you ask. Our community forum is worth a look too, for tips on where the good stuff is.

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. The ideal freshness window is usually 6-12 months.

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.

There is no need to wait for your Nano 7 to reheat between batches. Just wait for your current roast to finish its cooldown then load it up and roast again straight away! The Nano 7 is designed to roast back-to-back with no down time.