教育职员保证在无遮盖的食物、与食物接触表面或包装材料之上或周围应没有未受保护的玻璃，并制定文件并确保实施。

A policy of no unprotected glass over or around exposed foods, food-contact surfaces or packaging materials is taught, documented and executed.

youdao

教育职员保证在无遮盖的食物、与食物接触表面或包装材料之上或周围应没有未受保护的玻璃，并制定文件并确保实施。

A policy of no unprotected glass over or around exposed foods, food-contact surfaces or packaging materials is taught, documented and executed.

youdao