Making fresh roasted coffee at home is straightforward enough. In fact, the hardest part is to find unroasted coffee beans. The succeeding steps will be easy compared to that. Below is a simple guide that should get you started.
Buy Unroasted Coffee Beans
If you are lucky, your local coffee shop has and is willing to sell you some. However, if this is not the case then you go online and order unroasted beans. Make sure to specify the variety of coffee beans you want. The most basic are Arabica and Robusta. In this regard, it is best to read a few pointers on how to combine different types of beans to produce the best tasting roast. At the very least, you should understand that Arabica tends to be milder since it only has.8% to 1.4% caffeine content per bean. Robusta is stronger with 1.7% to 4% per bean. As beginners, it is best if you have both types. Experiment on the right ratio for you or follow the basic guides on ratio.
One important note, if you buy online then insist on air tight, water proof, and moisture proof containers. Next, make sure that they get to you as soon as possible. If you do not know where to look then start with EBay or coffee drinkers websites/blog sites.
If you have the budget then it is best to buy proper roasting equipment. This can be drum roaster which cooks using direct heat while continually mixing the beans, or hot air roasters. If you do not have the budget then you can roast the same in a pan. Just be mindful of the heat and you should manually stir the beans to roast them evenly. Place the beans on a hot skillet. Medium heat while roasting and then turn off the fire just before you get your desired roast color. The residual heat should take care of the rest. Avoid using teflon coated pans. The roasting process tends to scrape off the coat which then mixes with your beans.
Roast in Small Batches
Fresh roasted coffee is best done in small batches, just enough to tide you over for the whole day or three days at most. This is especially true if your choice of coffee is french pressed and espresso. Remember, the fresher the roast the more tannins you get. Without going into the details, the more tannins the better the taste and the more crema you get on espresso coffee.
What is Crema?
It is that brownish and creamy looking substance that floats on top of espresso coffee. This is only possible with an espresso maker because the same can only be extracted through maximum pressure which is not possible in drip coffee, percolators, french press, etc. Although in some cases a small amount of crema can be produced using a moka pot which is also known as a stovetop espresso maker.
As mentioned earlier, it is better to roast just enough for one day. Keep fresh roasted coffee in containers with one way air valves. Better yet recycle the zip lock bag that comes with store bought beans. This usually comes with a round hole that expels air and controls the amount of air left within the bag.