Put the bombilla in the empty space next to the pile, being careful not to disturb the arrangement. Bring the end of the bombilla to the bottom and against the wall, as far from the powdery tip of the pile as possible. Then add cold water into the empty space until just before it reaches the top of the pile and wait for it to be absorbed. Try to keep the powdery tip of the pile dry. Alternatively, pour cool water into the empty space until just before it reaches the top of the pile, and wait for it to be absorbed. Pack or gently tamp the slope of the pile; this packing helps the mate remain in this shape later on. Bring the end of the bombilla to the bottom and against the wall, as far from the powdery tip of the pile as possible.
In a group, the first brew is traditionally taken by the person who prepares the mate. If you are the server, drink the mate until there is no water left, then refill the gourd with hot water and pass it to the next person, sharing the same bombilla. Keep refilling the gourd as it’s passed around (one brew per person) until it loses its flavor (called lavado in Spanish, because the flavor is “washed out”); it should take ten refills, more or less (depending on the quality of the mate). The mound can be pushed to the opposite side of the gourd and refilled a few more times in order to fully extract the flavor. To signal that you don’t want any more mate, give thanks to “el cebador” (the server). Remember only to give thanks after your last mate. Once you give thanks it will be understood that you do not want anymore.
In Paraguay the Yerba Mate is drank cold, replacing the hot water for water and ice, in some case with a mixture of herbs, and instead of the gourd, a cured cow horn is used to contain the yerba mate. This preparation is known as “Terere”. In some places, like Argentina, mate is also sold in teabag form (called mate cocido) so it can be steeped like other teas (but still not in boiling water).
You can also make mate in a standard automatic coffee maker. Just put the mate where you would normally put the coffee grounds.
