Disgusting Food Museum

Young boy’s urine is collected in schools and markets around the city in buckets placed there by street vendors. Eggs are boiled in the urine until hard. The eggs are then cracked and continue to boil for several hours to let the urine soak into the egg. The golden eggs smell strongly of urine but the taste has been described as delicate, salty, and addictive.


The eggs boiled in the urine of young boys, mostly peasants, under the age of ten. It’s named “tong zi dan” (Chinese: 童子蛋; pinyin: Tóngzǐdàn), translated to boy eggs. The preparation is a spring tradition and and is listed as part of the Dongyang, Zhejiang local intangible cultural heritage.