Student or Learner
What do you do with tea when you pour hot water over tea leaves? You brew it in a small kettle or let it stand in it?
You pour boiling water from the kettle onto the tea leaves (or teabags) in the teapot (or mug) and let it brew.
In BE we don't use 'steep'.
Tea Brewing Basics, How to Store Loose Teas, What is a tea sachet
This American purveyor of fine teas uses "brewing" to describe making tea, and advises "steep times" for the various blends.
I'm so surprised by this thread -- I would have bet money that "steep" was more common in the UK than in the US.
It is, however, reasonably common in the US.
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.
The verb 'brew' correlates so strongly with tea that in some parts of the UK it's used informally as a noun (meaning 'cup/mug of tea'): 'This afternoon's going so slowly... Is it time for a brew yet?'