Tea experiences/shops in Beijing? I am looking to travel there.

I am looking to visit Beijing next year, and I will only have 4-5 days there. I have read some guide books, one even mentioning a tea store that’s 3 stories tall. I know I’ll need to bring a translation book of some sort, but I might need to find something online to help just for translations for Chinese tea.

I just wanted to see what others might have experienced here. I know there’s a tea scam in many tourist area, where college students would invite you for tea, then stick you with a huge bill.

I am looking for already approved tea tasting places, with gong fu service.