Portuguese firm Silvex, a manufacturer of household cleaning, plastic, paper and storage products, has unveiled a new line of plastic bags that are claimed to help wash, dry and store fruit and vegetables in an “easy, practical, quick and hygienic” way. Featuring a newly-designed “microperforation” system, Silvex Storage Bags for Fruit and Vegetables are claimed to preserve fresh produce for longer in the refrigerator, according to reports in HiperSuper and …