That 's why it 's important to take the back up measure of refrigerating all jams , jellies , and preserves once you 've opened them .

这就是为何果酱、果冻和蜜饯一旦开封，就一定要放到冰箱冷藏的原因。

Buying homegrown produce would seem to make more environmental sense . After all , transporting , refrigerating and storing tomatoes , creates a big carbon footprint .

买本地西红柿更环保，因为运输、冷藏、储存要产生不少二氧化碳。

Food processing and handling technology developed at iit bombay preserves food by extracting fluids from produce , reducing oxygen levels in storage rooms , refrigerating produce during transportation , and freezing foods with liquid nitrogen .

在孟买发展起来的食品处理加工技术可以有效保存食品，主要通过以下方式：萃取流体，将食品放入储藏室内来降低氧化水平，运输过程中进行冷藏，用液氮来冷藏食品。

" You can imagine a 3d printer making homemade apple pie without the need for farming the apples , fertilising , transporting , refrigerating , packaging , fabricating , cooking , serving and the need for all of the materials in these processes like cars , trucks , pans , coolers , etc. , " said cantu .

坎图说：“你可以设想一下，使用3d食物打印机自制苹果派，而无须种苹果、施肥、运输、冷藏、包装、加工、烹饪、上菜，而且不必使用生产过程中会用到的汽车、卡车、平底锅、冷藏器等工具。”