A Sichuan couple took the expression “preserving the bloodline” literally when they added formaldehyde to congealed pork blood, also called “blood tofu,” to make it last longer. They were each sentenced to one year in prison and fined 20,000 yuan between them. China Daily reports:
The husband surnamed Wang and the wife surnamed Shen, both 44 and residents of the city, bought pig blood to make blood tofu from May 2008 to August 2013.
The couple added formaldehyde during the process to make the dish last longer, and sold the poisonous and harmful blood tofu at local markets.
They were seized by commercial and industrial authority on Aug 1, 2013, with 60 kg of the tainted blood tofu they had made that day.
Untainted “blood tofu” is actually not as ominous it sounds. It’s sold at most markets, and is often eaten in soups like yaxue fensi tang, a Nanjing delicacy of glass noodles, duck offal, and the aforementioned jellified blood blocks in broth made from simmered duck bones. The blocks taste a bit livery with notes of copper.