Quality tests can be falsified with additives: peroxide is added to prevent milk going bad; industrial vegetable oil is emulsified and added to boost fat levels; whey is used to increase lactose content.
Kvalitetstester kan forfalskes med tilsætningsstoffer: peroxid tilsættes for at forhindre at mælken bliver sur; industriel vegetabilsk olie bliver emulgeret og tilsat for at øge fedtindholdet; ostevalle bruges til at øge laktoseindholdet.