Prepare the green tea powder by whisking it into the boiling water.
You can use a traditional Japanese whisk or a small frother.
While the powder is dissolving, prepare a cup of green tea using the tea bag as you would normally.
Then combine the two mixtures in a large pitcher.
Clear ones look best :).
Once the two teas are combined, carefully drop the raspberries and ice cubes inches Cover with plastic wrap and place in the fridge overnight, or four hours at least.
To serve, stir the mixture a little bit, and then pour into glasses.