Interpreting environmental swab E. coli results (ECC cfu/cm²): what’s the pass/fail limit?

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Interpreting environmental swab E. coli results (ECC cfu/cm²): what’s the pass/fail limit?

Started by FSQAManager2025, Yesterday, 03:21 PM

#26 kconf

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Posted Today, 03:10 PM

Mind you this is exclusively for carcass. All the other regular Petri films are read as they appear, no further calculations.

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GMO · Answer 2

#27 GMO

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Posted Today, 04:25 PM

Ah ok, but still, explain for me, is it per cm2 of the carcass area swabbed or per cm2 of the petrifilm?

Why does it make a difference using petrifilm?

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kconf · Answer 3

#28 kconf

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Posted Today, 04:56 PM

Area swabbed.

What do you mean why it makes a difference? Why does it get multiplied by 0.03? It has to do with dilution factor and carcass rinse.

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Interpreting environmental swab E. coli results (ECC cfu/cm²): what’s the pass/fail limit?

#26 kconf

#27 GMO

#28 kconf

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Interpreting environmental swab E. coli results (ECC cfu/cm²): what’s the pass/fail limit?

#26 kconf

#27 GMO

#28 kconf

1 user(s) are reading this topic

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