A method of acid manufacturing using ion exchange resin allows for the production of acids on location where the acid is being utilized to prevent the necessity of transporting the acid. An ion exchange medium provides a medium for substituting hydrogen ions for salt cations within a salt solution in order to protonate the salt solution. As the salt solution becomes protonated to form an acid solution from the respective salt anion as the concentration of hydrogen increases. The ion exchange medium is recharged with a hydrogen ion source solution. The ion exchange resin is safe to transport even while charged with hydrogen ions.