a glass jar with a wide opening, with a lid that is sealed (= completely closed so no air can enter) with a rubber ring, used for preserving food

Sterilize the canning jars and lids before you begin. 开始前先消毒罐头瓶和盖子。

Let the chutney cook half an hour longer before pouring it into canning jars. 让酸辣酱再煮半小时，然后倒入罐头瓶中。