There are two things econcon could've meant by "create" - either what happens before the tea/coffee reaches your shop, or what happens afterwards. I'll go with your interpretation...
I'm a fan of tea, ignorant about coffee.
Tea brewing generally has three variables: amount/proportion of leaves/water, water temperature, brewing time. With coffee, those three are still applicable. And there's a fourth variable: how finely one grinds it, and perhaps a fifth one: whether/what pressure to apply while brewing.
I usually don't even rinse oolongs/greens and it's fine. If you don't rinse your puerh, the first brew is just going to taste like a rinse. No big deal - enjoy the subsequent brews :)
I'm a fan of tea, ignorant about coffee.
Tea brewing generally has three variables: amount/proportion of leaves/water, water temperature, brewing time. With coffee, those three are still applicable. And there's a fourth variable: how finely one grinds it, and perhaps a fifth one: whether/what pressure to apply while brewing.
I usually don't even rinse oolongs/greens and it's fine. If you don't rinse your puerh, the first brew is just going to taste like a rinse. No big deal - enjoy the subsequent brews :)