Winda van Zanten, 14-11-2015 I read the article with great interest, but what I miss is a description of how to prepare the tea (how much tea per cup and whether the water should be boiling or just cooled down) and in what amount you should use it daily to achieve the most beneficial effect.Elsewhere I read that you should cover the tea while steeping.It was not clear whether this is against light (ie yellow glass head) or to prevent substances from disappearing via vapor.I await your response with interest.Response infoteur, 11-02-2016 Most people make weak tea because the tea is relatively expensive.You will notice that even a weak tea of ​​jiaogulan already has an effect.What I do myself is the following: I also eat the leaves.I incorporate these into a meal at the end of the day, for example in a vegetable mix or chopped into a salad.The leaves are edible and taste spicy and why throw them away when they are very healthy?If a tea needs to steep a little longer, cover it so it doesn't get cold.In addition, some substances can indeed evaporate, but that is minimal.