½cPuffed barley (cooked barley) This is a very important ingredient to protect your digestive system if you are unsure if you have a “cold” body or a “hot” body
8Chinese yam (淮山, húai shān) , sliced pieces. Can be either dried or fresh
If you have sulphured Chinese yams, soak in water for 30 minutes then rinse
If you have unsulphured Chinese yam, just wash and rinse
Put all the ingredients except for the rock sugar into a large pot and bring contents to a boil
Reduce heat to low and let simmer for 1.5-2 hours
Add rock sugar
Ready to serve when sugar has dissolved
Notes
Other ingredients that you may choose to add to this tea are goji berries, ginger, southern and northern apricot kernel seeds, hawthorn berries, red dates and honey dates. Reduce the amount of water by 3/4s and make it thick and syrupy for mixing with sparkling water.