Coffee.Coffee is made from the seed of a coffee plant/, popularly known as caffee beans
. (coffee a single word, to me is an infusion/a drink.)
Technically it wouldn´t be a bean; some disagree, others not, since the germination is different.http://www.biology-resources.com/plants-seeds.html
Others not, since in dictionaries a bean may have as synonym: berries, seed, grain, so in this sense it´s a also a bean. http://www.biologyreference.com/Ce-Co/C ... ny-of.htmlWhat first comes to mind when we hear the word is the drink made from this fantastic seed. Coffee is an infusion *guzzled all over the world, prepared in different ways with different ingredients.
*I tried to add more variety of words, make it more colourful and with a more strong appeal/statements.But originally coffee came from Etiopia and was one important staple food for people and animals in that country. Basically because of the strong effect on behavior on those who takes coffee: the animals and people seems to get excited, (*) energized and wakeful as they drank coffee. It was in this way, that was found that animals and peoples can work more when they drink coffee, since they get more alert.
There was also a/the belief that coffee is a natural holy fruit, and soon it was involved in religious rituals. The catolics; on the other hand, thought coffee was a fruit sent from hell or associated with the evil.
The drink was brought to Europe and its colonies by the French, who added/included sugar on that bitter concoction/brew. So, the European taste and idea shapped how we drink it up today, then it arrived in America and turned into a popular drink on the world, drank in the morning, afternoon or at night.
"staple food" is a stronger affirmation than just "food", since "staple" conveys the idea of "important/popular/main/essential", for example rice is a staple food in China, beans and maize (among others) are staples food in Brazil. If you don´t think it´s essential/popular you could have stated that "coffee was used/consumed as food/as part of the menu of the country etc"
staple food" could seem like extra information, anyway it´s almost a fixed expression.http://www.thesaurus.com/browse/staple?s=t
'cause - I would use in more informal texts, an email or chat room perhaps. More so when you are a begginer, or so I think.
Energetic - in some contexts it may be the same as energized, but I choose the latter one. Some people could mistaken the animals with "Red Bull", the energetic itself.
[i]I hope it helps, I couldn´t help redoing it ! There are some aspects of the revising that it would take long to explain, anyway the above comments can be useful, and something to begin with.