We've crushed and dried the branches and leaves of kuromoji, a medicinal herb, into tea bags. The aromatic components of kuromoji, linalool and geraniol, have calming effects that promote restful sleep. Recently, there has been interest in kuromoji's immune-boosting properties, and it has been presented at academic conferences as a super herb that can block influenza viruses. Each 5g tea bag can produce 1 to 1.5 liters of kuromoji tea. Enjoy the refreshing scent of kuromoji from the mountains.