These are the three places that I know of that sell bubble tea in London. Does anyone know of others? FWIW, my regular drink is cold green milk tea with tapioca balls, and everything I’ve tried at these places will be some variant of that.
Brew Box Bubble Tea
120 Islington High St, London, Islington N1 8EG (Camden Passage)
A couple of very friendly guys making bubble tea using high end ingredients. There’s a choice of various types of tea and of fruit jellies, as well as tapioca balls. If you get the tea-based drinks (e.g. assam, jasmine, macha), then they use real brewed tea. (They will also brew this for you as a straight tea.) For the milk teas, they use a soy-based milk substitute, which they say they prefer to soy milk because it gives a fuller body, more like a milkshake. But they will use soy milk instead if you ask (no extra charge), which gives a more creamy/ oily texture and a richer feel. The fruit-based bubble teas use syrup from real fruit, not synthetic.
49 Rupert St London W1D 7PF (also has other locations)
Very large range of teas and boba, dished up with a silly science experiment theme. The teas are all made up from powder and I found them rather sweet, sweeter than any other bubble tea I have had.
Old Tree Bakery
105 Golders Green Rd London NW11 8HR
Restaurant, bakery, and bubble tea shop. The only boba are tapioca balls, and the choices are limited to hot or cold, tea or green tea, milk or no milk. But the few teas Old Tree does, it does well.