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法国和英国的军队发明了今天的罐头食品。罐头食物相当方便,不仅保存容易,也可以制成各种口味,咸淡皆宜,随时可食。相较之下,时下盛行的冷冻食品固然方便,却受到电源及设备限制,野外活动时就没有如此便利。罐头问世约两百年,时间不长,却足以改变人类的生产行为与饮食习惯。原本因保鲜问题无法大量出口的食材,一旦制成罐头,便可漂洋过海,营销世界。
French and British forces invented canned food today. Canned food is very convenient, not only easy to store, but also can be made into various flavors, savory, edible at any time. In contrast, the prevalence of frozen foods nowadays is convenient, but it is limited by power supply and equipment. There is no such convenience in outdoor activities. Canned about two hundred years, time is not long, but enough to change the human production behavior and eating habits. Originally due to preservation problems can not export large quantities of ingredients, once made canned food, can be across the oceans, marketing the world.