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Partial Substitution of Hot Filler Sanitation by a Cold Chemical Sanitizer

MBAA TQ vol. 42, no. 1, 2005, pp. 54-56  |  VIEW ARTICLE

George Agius (1) and Stacey Burkeen (2). 1. JohnsonDiversey Inc., Oakville, Ontario, Canada. 2. Coors Brewing Company, Memphis, TN, U.S.A.

Abstract
The packaging of beer in bottles or cans without pasteurization necessitates that the filler be as near to sterile as possible. In this regard, steam-in-place (SIP) filler cleaning procedures with a final hot-water (steam) sanitation step at 80�C (176�F) have been very successful in achieving the highest microbial control standards. However, the hot filler sanitation procedure is time consuming and energy intensive and produces considerable thermal stress to the filler and associated components. A filler sanitation regime that uses a combination of a cold SIP procedure (employing a cold sanitizer) interspersed with a hot filler sanitation procedure has been tested and found to provide the same microbial control as the sole use of a hot sanitation procedure. This combination has resulted in substantial cost benefits arising from shortened filler cleaning turnaround time, reduced energy consumption, and diminished thermal stress on the filler. The less frequent use of steam caused a reduction in the wet/humid conditions of the plant ceiling structure from steam condensation. This resulted in an observed reduction of mold formation and corrosion damage to the ceiling structure.
Keywords: cold sanitation, filler sanitation, steam-in-place

 

S�ntesis
El envasado de cerveza en botellas o latas sin posterior pasteurizaci�n, requiere que la llenadora sea tan est�ril posible. Los procedimientos de limpieza directamente con vapor (�steam-in-place�, SIP) seguidos por un enjuague final con agua a 80�C (176�F) han dado muy buenos resultados. Sin embargo, este procedimiento toma mucho tiempo y requiere de mucha energ�a, a la vez que ocasiona tensiones t�rmicas a la llenadora y sus accesorios. Un procedimiento utilizando una combinaci�n de limpieza con un compuesto fr�o alternada con limpieza en caliente ha dado resultados tan buenos como con la utilizaci�n exclusiva de limpieza en caliente. Esto es m�s econ�mico como resultado de la reducci�n en el tiempo parado para la limpieza, menor consumo de energ�a y menor carga t�rmica al equipo. El menor consumo de vapor redujo las condiciones h�medas en el techo debido a la condensaci�n, reduciendo la formaci�n de moho y la corrosi�n de la estructura del techo.
Palabras claves: limpieza en fr�o, limpieza de llenadoras, steam-in-place

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