Wipe your food contact surface with the new Whirl-Pak 1-ply composite tissue and bag when even less than 10 microorganisms is a concern. The 1-ply sheet has a highsurface area to volume ratio, which allows nearly total release of captured bacteria, yeast and molds. Add as little as 5 mL's of whatever buffer or broth you choose to moisten the tissue, take it out of the bag with a gloved hand, then wipe to sample a surface, place back in bag, twist down to seal and return to the lab for testing.
Recent studies have shown this 1-ply composite tissue method to be an effective, low-cost alternative to other surface sampling methods. For further cost reduction several tissues can be composited and enriched in one bag. Several studies: J. Food Prot. 67:2212-2217 and 70:1263-1266 have shown improved quantitative recovery of Listeria monocytogenes and indicator organisms from food contact surfaces and poultry-processing environments.