When brewed in cold water, the sweet ingredient and the umami ingredients (theanine and amino acids) are extracted. Vitamin C is also extracted without being damaged.

Just put in water and tea leaves. Let it set over night, and delicious tea is ready the next morning.

As a filter is incorporated into the spout, you can pour the tea as it is. Washing is easy, too.

This wine-bottle-shaped bottle adds a style to your table.

This product can be stored in the door pocket of your refrigerator.