The Chinese mafia tends to be ruthless among themselves, but polite to
foreigners ...

Interesting you mention about tea washing.

There was similar post sometimes before and it was said pesticide
stays inside the leaves and doesn't come out easily...

For tea like Da Hong Pao it is re-infused up to 9 times.

Perhaps over-infusing is also a risk as much as tea washing (for
oolong tea) is a benefit.

Julian
http://www.amazing-green-tea.com