This was given to me by a tea shop I know. They roast locally-grown Rokujo barley in-house. For about 2 liters of boiling water, add about 3 tablespoons of the whole barley and simmer for about 10-12 or 13 minutes, until it reaches your desired strength. The aroma and taste are completely different from commercially available, pulverized tea bag barley tea (*^^*) After brewing, you can of course drink it cold, but warm barley tea is also delicious. Please note that it will be sent in a zip-lock bag with simple packaging.