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食物有危險溫度!譚敦慈揭年菜保存復熱5大NG 「放涼再冰」細菌飆

ETtoday
2025/01/30 | 2分鐘閱讀

記者洪巧藍/台北報導

迎接農曆新年,不少人家裡會準備豐盛年菜,讓來團聚的親友們飽餐一頓,不過有時準備過頭,也會變成一道菜收冰箱又重複熱,連吃上好幾天。無毒教母譚敦慈分享,年菜應該適度採買,保存的時候也要注意食物有危險溫度(7°C至60°C),在此區間細菌恐快速滋生,不要以為天冷菜放在桌上不會壞,或者等放涼才放入冰箱,這些都是NG行為。

image

林口長庚醫院臨床毒物科護理師譚敦慈表示,年菜最害怕越煮越大鍋,加入新的菜一直煮,應避免反覆加熱超過三次以上,除了影響口感,還可能因細菌滋生而導致食物變質;若是海鮮類的食物,因為更容易腐壞,更是不建議放到隔夜。

譚敦慈建議,年菜應該適度採買才好保存,她個人家裡習慣是每天準備一道主菜,再搭配新鮮蔬菜,例如今天以佛跳牆為主,其他就是炒青菜等去搭配,避免有剩菜,隔天可以把主菜換為蹄膀,用一樣的模式去搭配青菜,不僅節省食材,也能保持每餐的營養均衡。

有些長輩仍然有食物要放涼才能夠冷藏保存的觀念,譚敦慈指出,食物長時間處於危險溫度範圍(7°C至60°C)細菌容易滋生,也可能造成食物腐敗,所以當食物溫度約在65°C上下就應該放進冰箱,判斷方式可以用手摸,雖然熱但是不燙手就表示溫度差不多。

過年的時候冰箱容易被塞爆,譚敦慈建議大家要學會拆解食材保存,以南部仍常見的三牲祭拜為例,如果都放到冰箱一定會滿出來,可以先把容易腐敗的魚類、海鮮先吃掉,至於豬肉則可以分塊儲存,分成每餐所需的份量分裝冷藏或冷凍;全雞更是一定要拆解,可以分別保存雞腿、雞胸,骨頭則可另外保存用來熬湯,用這樣的原則處理,一隻雞大概會變成一小盒大小,會非常省空間。

而過年少不了滷肉、雞湯等大菜,譚敦慈也提到,這類蛋白質食材燉煮超過兩小時,就容易產生會危害心血管健康的氧化膽固醇,建議燉煮時加入新鮮的蔥、薑、蒜或洋蔥,減少氧化膽固醇產生。另外,避免長時間反覆滷煮,應將滷好的食物分裝冷藏,每次取出一份加熱吃完為主。

譚敦慈補充,若是超過500cc的湯,應用直火煮沸或電鍋加熱,避免使用微波爐,因為微波加熱容易導致加熱不均,無法徹底滅菌。

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