What is the caffeine content of puerh teas as compared to greens, white teas,etc.? And also should puerh teas be stored in airtight containers between use or just in the wrapper to continue aging?
I'd say that the caffeine content is in the mid range in general. I have had greens and oolongs with more and with less. It definitely has less than blacks(reds).
The only time you want to store a puerh in an airtight container is when it has reached maturity and you like the flavor enough to stop further oxidation.