1. Prepare black tea bags, ice powder, rock sugar in advance
2. Add water to the milk pot, put the black tea bag and rock sugar to heat
3. Boil until the rock sugar melts and the aroma of tea overflows, remove the black tea bag
4. Add ice powder and stir well and cook for a while
5. Let it cool slightly and pour it into the bottle
6. Dry to room temperature and put it in the refrigerator to solidify
7. After taking it out, add milk and mix well
8. You can drink it
Tips:1. The black tea bag should be tightened, or the black tea foam should be filtered if it overflows.
2. If you like sweet, you can put more rock candy, I think the sweetness is just right
