Table 3. Biofilm reduction after the citric acid/sodium hypochlorite CIP system

Processing step	Escherichia coli form (CFU/cm2)		Aerobic bacteria (CFU/mL of cm2)
	Before	After	Before	After
Milker	102±11	0±0	1,995±77.8	32.1±1.4
Tank interior	48.5±4.9	0±0	1,055±84.8	1.5±0.7
Filter, pipe line	2±1.4	0±0	141±7.1	9±2.4
Pipe line, plumbing joints	22.5±3.5	0±0	272.5±16.2	0±0.0
Tank interior, plumbing joints	28.5±2.8	0±0	153±11.3	1±0.0
Pipe line, filling inlet	25.5±2.1	0±0	374.5±22.2	4±0.9

CIP, Clean-In-Place.