點(diǎn)著打火機(jī)將罐頭瓶口對(duì)準(zhǔn)火苗轉(zhuǎn)圈燒烤，把要開(kāi)的罐頭放入冰箱速凍里，罐頭蓋會(huì)變松，輕松開(kāi)水果罐頭的方法：再迅速的去盒蓋上擰，