Colombian and Kenyan coffees are completely different and it's marvelous to notice the difference!
You should try different roasts of beans as well, see which you prefer. They also get to judge contests and write reviews among other things. Experiment with a number of different settings depending on how many different coffees you want to taste.
Try sampling different coffees from different countries from all around the world.
You will normally want to add two tablespoons plastic bottle supplier of ground coffee to 180ml of water, but you can adjust this to find out what works the best in your case. The water should be around 93C but you can also vary this to see what works best. You should also include some measure scoops, spoons and anything else you might need. Then filter the coffee and put a small amount into the sampling owl.
There are some things that you will want to avoid or enhance depending on your preferences, these can be:
-Acidity - Tartness of the coffee. You should try to avoid any distilled water as these often contain too high salt levels to be used for coffee.
Use a burr grinder to grind the beans and boil the water. This is very noticeable in Mexican coffees.Cuppers are the professionals who taste the coffee when deciding which ones the businesses should buy.
So you can set yourself up it's a good idea to get a small tray which can hold around 12 bowls. Even water can become stale over time and taste not so nice. -Nuttiness - not everyone likes nutty coffee, this usually shows that the beans are poor quality. The roast will vary the acidity of the beans the most. If you know enough to be able to make a cup of espresso, you'll be fine.
Just think about what the coffee is like, what does it taste like? What does it smell like? Different coffees can produce very different results. Try light roast, medium roast to very dark roast. You must also put the coffee on.. Grinding the beans differently can dramatically change the taste of the coffee. Try smelling the aroma first, and then taste it by allowing it to flow over the whole tongue. -Bitterness - Robusta beans are normally bitterer than Arabica beans. -Aroma - the smell of the beans is quite important. It's not just professional cuppers which can get paid for sitting in front of such a beautiful drink!
A professional cupper will check the coffee by smelling and tasting the fresh brew. This will affect your brew. Changing the roast of the bean can make a lot of difference in the final cup. Don't swallow it spit it out after a couple of seconds. Swill the beans around your mouth so that you can look out for bitterness.
You should make the coffee by steeping the samples in hot water for a couple of minutes. Kona beans have a very fruity aroma.
You should keep a supply of fresh water, even the best coffee wont taste very good if it's made with old water which has been left out for a long time. You can recreate this at home by setting up a few different coffees to taste