Patent ID: 6357454
Filing Date: 2002-03-19
Classification: A61L,B08B,C02F

Abstract:
A method for washing and sterilising a beer supply pipe using water treated by an electrolysed functional water generator to remove impurities from an interior of the beer supply pipe, the method comprising:producing a strong alkaline electrolysed water using the electrolysed functional water generator; producing a strong acidic electrolysed water using the electrolysed functional water generator; washing the interior of the beer supply pipe by introducing the strong alkaline electrolysed water into the interior of the beer supply pipe; sterilising the interior of the beer supply pipe by introducing the strong acidic electrolysed water into the interior of the beer supply pipe, wherein the strong acidic electrolysed water removes the impurities from the interior of the beer supply pipe; and purging the interior of the beer supply pipe with carbon dioxide gas after the strong acidic electrolysed water is introduced into the interior of the beer supply pipe, wherein the strong alkaline electrolysed water has a hydrogen ion concentration (pH) in the range of 11.0 to 12.5 and an oxidation-reduction potential (ORP) of âˆ’650 mV or lower; and the strong acidic electrolysed water has a hydrogen ion concentration (pH) in the range of 1.5 to 3.0, an oxidation-reduction potential (ORP) of +1100 mV or greater and a chlorine concentration in the range of 10 to 50 ppm.