Tong Zi facts
While investigating facts about Tong Zi, I found out little known, but curios details like:
There is a Chinese delicacy, tong zi dan (also known as virgin boy egg), that is an egg boiled in the urine of prepubescent boys preferably under the age of 10. The urine is collected from school toilets or boys urinate directly into collection buckets set out by vendors.
In my opinion, it is useful to put together a list of the most interesting details from trusted sources that I've come across. Here are 1 of the best facts about Tong Zi I managed to collect.