270 days. 85 degrees C, a Taiwan Province fashion catering company, mainly engaged in coffee and dessert, is located in Zhiquan section of East Street, Jinjiang District, Chengdu, Sichuan, China. Upon inquiry, the company official website learned that the shelf life of 85-degree C zongzi is 270 days. 85 degrees C is based on the method of making zongzi in western Taiwan. Glutinous rice is mixed with various ingredients and cooked in a pot. It tastes extraordinary and every bite is very delicate.