冰箱有異味,致病風險高

【時間: 2019-05-31 14:39 人民網】【字號:

冰箱是儲藏新鮮果蔬的地方,但若食材儲存太久,被遺忘在冰箱里,就會產生異味。中國農業大學食品科學與營養工程學院副教授范志紅表示,定期整理冰箱不是小事,關乎身體的健康。

冰箱雖然能夠保持長時間低溫,但同時也是封閉環境,食物一旦腐敗,細菌會大量繁殖。范志紅告訴記者,冰箱的異味來源于細菌代謝產生的氣體,比如硫化氫甲基胺等。另外,生食中存在李斯特菌等細菌,其生存能力強,在0~4℃冷藏環境下仍能存活,甚至在-20℃下仍能生存一年;李斯特菌侵襲能力也很強,輕則引起腹瀉,嚴重時甚至危及生命。

因此,定期清理冰箱不僅是為了清除異味,也是為健康安全著想。范志紅建議,正確使用冰箱要注意七點:關注冰箱溫度,盡量保持4℃以下;為防止食物串味,應用保鮮袋或保鮮膜等將食物裹緊之后再放入冰箱保存;遵循熟食在上,生食在下的原則;化凍過程中微生物會迅速繁殖,解凍過一次的肉類不宜再放回冰箱,建議吃多少解凍多少;肉類烹調前應徹底解凍,并充分煮熟,以消滅潛在的微生物;冰箱應定期除霜清洗,保持清潔;盡量做到隨買隨吃,不要囤放太多食物。

清潔冰箱時,要先斷電,將食物全部取出,用干凈的抹布或濕巾清潔,盡量不要用消毒液清洗,以免造成二次污染。及時清理冰箱中的剩飯剩菜,尤其是年后剩余飯菜多,長時間放置不但滋生微生物,營養價值也會大幅下降。還有一個細節是冰箱門的膠條,很容易被菜汁等污染,建議拿棉簽蘸取酒精進行擦拭。 


編輯:李江
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