Den foreliggende opfindelse angår et konserveringsmiddel omfattende 20-80vægt-% vandig opløsning af C1-C3 carboxylsyrer i blanding med deres salte og 0,01-2 vægt-%, fortrinsvis 0,25- 1,5 vægt-% antioxidant, og 0,01-2 vægt%, fortrinsvis 0,25- 1,5 vægt-% korrosionshæmmer. Antioxidanten er fortrinsvis propylgallat, og korrosionshæmmeren er fortrinsvis ascorbinsyre. Mindst 50 mol-% af carboxylsyrerne er på udissocieret form.The present invention relates to a preservative comprising 20-80% by weight aqueous solution of C1-C3 carboxylic acids in admixture with their salts and 0.01-2% by weight, preferably 0.25-1.5% by weight of antioxidant, and 0, 01-2% by weight, preferably 0.25-1.5% by weight of corrosion inhibitor. The antioxidant is preferably propyl gallate and the corrosion inhibitor is preferably ascorbic acid. At least 50 mole percent of the carboxylic acids are in undissociated form.
