Most bubble tea powders are 3 in 1 meaning that they have 3 ingredients already in them.  For example, taro bubble tea powder will have the taro flavoring, non
-dairy creamer and sugar already mixed together in the bag.
Once you have found quality powder and tapioca (boba), now you need to get your method right.  Bubble Tea can be made with many different bases; Green Tea, Black Tea, Earl Grey Tea or even hot water.  The base will change the taste of the drink and some flavored powders are better with certain bases than others.  One of my favorites is Jasmine Green Tea with Taro Bubble Tea powder!
100g can make 2-4 deinks
250g can make 6 drinks
1kg bag can make 20drinks