保(bao)鮮膜(mo)在生(sheng)產過程中普遍添加(jia)了(le)塑(su)化劑,保(bao)鮮膜(mo)對(dui)人體(ti)健康的影響(xiang)也受到了(le)人們的關注。
市場上的保(bao)(bao)鮮(xian)(xian)膜(mo)大體(ti)分(fen)為(wei)兩類(lei)(lei),一類(lei)(lei)是普通保(bao)(bao)鮮(xian)(xian)膜(mo),適用于(yu)冰箱保(bao)(bao)鮮(xian)(xian);一類(lei)(lei)是微波爐(lu)(lu)保(bao)(bao)鮮(xian)(xian)膜(mo),既可用于(yu)冰箱保(bao)(bao)鮮(xian)(xian),也(ye)可用于(yu)微波爐(lu)(lu)。后一種保(bao)(bao)鮮(xian)(xian)膜(mo)在耐熱、無毒性等方面(mian)遠遠優于(yu)普通保(bao)(bao)鮮(xian)(xian)膜(mo)。因此,消費(fei)者(zhe)在使用選擇上要(yao)特別注(zhu)意,分(fen)項使用。
購買(mai)保(bao)(bao)(bao)(bao)(bao)鮮(xian)(xian)膜(mo)(mo)時,首先建議購買(mai)聚乙烯(PE)材(cai)質制(zhi)成(cheng)的(de)(de)(de)自(zi)粘保(bao)(bao)(bao)(bao)(bao)鮮(xian)(xian)膜(mo)(mo),尤(you)其是(shi)在為肉食(shi)、水果等(deng)進行保(bao)(bao)(bao)(bao)(bao)鮮(xian)(xian)時,因為從安全性(xing)上來(lai)講,PE材(cai)質的(de)(de)(de)保(bao)(bao)(bao)(bao)(bao)鮮(xian)(xian)膜(mo)(mo)是(shi)最(zui)安全的(de)(de)(de)。如果希望保(bao)(bao)(bao)(bao)(bao)鮮(xian)(xian)期較長,建議選(xuan)擇聚偏二(er)氯乙烯(PVDC),因為這種材(cai)質的(de)(de)(de)保(bao)(bao)(bao)(bao)(bao)鮮(xian)(xian)膜(mo)(mo)保(bao)(bao)(bao)(bao)(bao)濕性(xing)能比較好,在三種材(cai)質的(de)(de)(de)保(bao)(bao)(bao)(bao)(bao)鮮(xian)(xian)膜(mo)(mo)中保(bao)(bao)(bao)(bao)(bao)鮮(xian)(xian)期最(zui)長。聚氯乙烯(PVC)材(cai)質的(de)(de)(de)保(bao)(bao)(bao)(bao)(bao)鮮(xian)(xian)膜(mo)(mo)由于透明度(du)好、粘度(du)好、彈性(xing)好,價(jia)格(ge)較為便宜,所以也成(cheng)為很多人的(de)(de)(de)選(xuan)擇,但一定要注意不能用來(lai)做油脂食(shi)品的(de)(de)(de)保(bao)(bao)(bao)(bao)(bao)鮮(xian)(xian)