Bought this tea has not once, not twice, as he liked to. Then write that it is very sour, did not seem to me such, I had to brew liter mug me so comfortable, it goes on bag 700ml water. Delicious rich moderately sour, flavor above praise. I also do it from the jelly, two bags per liter and 3 tsp agar-agar, boil and pour into the forms, it is very tasty and yummy flavorful leaves. For those who still need to what would have been sweet, you can add agave syrup.