Now the market or changes in the diversity of edible oil , edible oil of different quality in different packaging reflects different , just like a small pack edible oil in bulk cheaper oil prices , many consumers tempted endless. However, previous press from quality inspection conducted by the donut machine of Technical Supervision of edible oil can be found : bulk edible oil quality was worse than the small package edible oil. Bulk easily lead peroxide value of edible oil and oil extraction solvent residue standards . Edible oil in the state should not exceed 10 mg peroxide , peroxides seriously overweight will produce large amounts of low molecular weight oils volatiles , such as aldehydes , ketones , such substances on human health is very bad , some of which are also ingredients carcinogenic . Because of these things ever happened ,  wire stripping machine press has constantly appeared , because it can make us a press clothed yourself , so ah such a machinery company is getting more, but Goodwin machinery the credibility of the press is a very good offer also includes a first-class quality , so experts suggest that as much as possible to buy a small pack edible oil , which not only has a certain quality assurance , but also healthy.