Norton brand black tea is basically used, green tea and oolong are also useful, but a little less. About 70 cents a pack, which is the most commonly used in tea shops. In addition, adding non-dairy creamer, which is milk essence, is healthy and non-toxic. Don't worry! Some Norton's are already configured, as long as you add fruit essence (slightly toxic), coconut or pearl fruit (slightly toxic). Slight toxicity means that there are substances that may be harmful to human body.
The cost is about one yuan, and the price is 3-5 yuan.
If you add fresh milk, the cost will be about 3 yuan a cup, but the price is much higher, generally about 10 yuan, but few people buy it, hehe!