Use of impedance spectroscopy techniques in the study of corrosion resistance of peel-off aluminum foil lids for the packaging of pureed food

In conclusion, from the results obtained it was possible to define key physicochemical and electrochemical parameters, such as nature and porosity of the lacquer or presence of additives, to be taken into account in the production of peel-off lids for which aluminum protection is of fundamental importance. The electrochemical tests have provided information on the impedance values needed to ensure the required shelf life for this type of products, recently introduced on the market.