it depends how big the tree is...
Green beans lose about 20% of the weight when roasted. You therefore need to roast 19-20 ounces of green beans to have 1 pound of roasted beans. There is no loss of weight when grinding, so 1 pound of roasted beans will produce 1 pound of ground coffee.
No one invented coffee beans. A coffee bean is a seed of the coffee plant, and are found in the nature.
You can buy Coffee Tree Seeds from Sherry's shop at the Bazaar starting Fall year 3. Once your Trees are fully grown you can get Coffee Beans from them one season out of the year. The rest of the time you will not get any.
There are a great number of places to buy coffee beans online. One place that you can buy coffee beans as well as almost anything else you may want is on Amazon.
The United States has one state that grows coffee beans, Hawaii!
Seattle is one of the states best known for their coffee beans. There are a number of large coffee companies that have had their beginnings in Seattle.
You can find Brazilian coffee beans from retailers such as Amazon and Walmart. Amazon retails Brazilian coffee beans at a cost of $42.75 per five pound bag.
This coffee is called Kopi Luwak. It is one of the most expensive types of coffee beans. The animal called civet is responsible for the popularity of this coffee.
One more, and it will be 2farty!!!!!!
Coffee beans that are tiramisu flavoured or hazelnut flavoured are quite a novelty and will have your guests smiling appreciatively. They can be found at the Jacc's Coffee website.
Wikipedia has a page about coffee varieties. I believe this will suit your need, as it seems to be one that actually lists all the type of coffee beans you could find.
It really depends on the type and brand. There is this one animal who eats coffee beans and you can use its droppings for coffee, it costs like $500 a pound or something. Yes, it is real. A kilo is 2.2 pounds. So if a pound of gourmet coffee beans is $6.99, then a kilo of coffee beans is $6.99 X 2.2 = $15.38.