Black Lycium barbarum is generally used for soaking in water. Personally, it is better to soak in water directly, without the influence of other things. Many people use it to make wine and stew soup. Not recommended. Soaking water is also very particular. Can not be soaked in boiling water, it will destroy the activity of anthocyanins, and its efficacy will be greatly reduced. I read an article in butterfly lovers, which explained the effect of soaking Lycium barbarum at different temperatures on anthocyanin release with experimental data. You can go and see "99% people don't know the temperature of soaking black wolfberry". There is no standard about dosage. Red wolfberry and jujube will get angry if you eat too much. Keep it moderate, generally more than one bubble 10.