Preparation:
Bring some water to a boil and let it cool to about 80 °C. Put 1 bamboo spoon of matcha powder in the bowl and add some of the hot water (at approx. 80 °C). Use the bamboo whisk to make a thick tea paste and set aside to cool. Cut the lime into wedges and place in a glass with the ice cubes and mint. Add the mineral water and agave syrup to taste. Carefully pour the matcha tea paste into the glass.
Serve with a straw, mint and stirring rod.