Plant Guarana, Paullinia Rubiginosa or Guarani (no tropical guarana) .The fruits are capsules open, exposing a white arillo sweet and edible. The black seeds are slightly smaller than the Amazon Guarana (Paullinia cupana) and has the same uses as this, but thankfully resists temperatures up to -4°C. To make the drink Guarana, proceed as follows: the fruit is harvested when most capsules are open, the seeds are roasted to remove the husk or shell, roasted almonds will be crushed in a mortar with a little water until it has the consistency of a paste, after this are made with dough sticks are dried in the oven so that they are rigid and ready to be transformed to scrape the powder to prepare delicious energy drink guarana.
These extracts of roasted guarana seed have been used as medicinal beverages since prehistoric times because of its reputation as a stimulant, aphrodisiac, tonic and stomach protectors (Angelo et al. 2008). The tribes of the rainforest have used guarana mainly as a stimulant, astringent, analgesic, febrifuge and tonic to treat chronic diarrhea, hypertension, migraine, neuralgia, and dysentery (Duke 1992), there are also recent studies of its anticancer properties .