How long does it take for a can of soda’s worth of caffeine to wear off?

And where can you buy the same or similar syrup or flavoring?

Thanks so much!

I always feel nervous and overwhelming when drinking milk tea but not coffee so I suspect that caffeine may have a effect on that.

We need to start making flat whites at work and im sure it is just the same as a latte

Washington woman gives coffee shop away for free

Won’t you drink these coffee?

I know it’s a stimulant.. blah blah.. but scientifically what is the reason some people’s hearts have palpitations after drinking caffeine? (mine included)

i want to try something new.. is it good?
Full leaf black tea with citrusy Italian Bergamot and a hint of lavender. Sweetened with vanilla syrup and topped with steamed milk and velvety foam.