This bag of tea is made from 100% Barley Tea from Japan. Barley tea is a grain which does not contain caffeine.
You can enjoy the tea in two ways:
1. Put one tea bag in 1L of water and put it in the refrigerator. Take out about 2 hours later and enjoy it.
2. Put 1 tea bag in 1.5L of boiling water, simmer for 3-5 minutes and turn off the heat. Take out the tea bag after 1 hour, and transfer it to another container and put inside the fridge to cool it.