For meat to be classified as kosher, the animals must be slaughtered in a specific ritual fashion by trained specialists.
"Not everyone keeps kosher," Shapiro said.
For those who do, pork and shellfish are especially off-limits; meat and dairy are to be set apart.
According to Shapiro, a kosher meal is served on double tinfoil instead of on a plate, which may be contaminated by previously having pork served on it.
The Bible designates some animals as unclean, including pigs, rabbits and horses.
When receiving kosher inquiries from people who visit Taiwan, Shapiro sometimes recommends following a Buddhist vegetarian diet.
Hsu Yang-ya (
The restaurant was very popular among the Jewish community in Taipei until it was relocated to Taichung four years ago.
According to Hsu, his Jewish clientele has dwindled significantly over the years, as many foreign Jewish tradesmen have moved to China to seek business opportunities there.