Hello everyone, this is my first post here, thank you very much in advance :)
I would be grateful if you could help me to interpret some data.
I'll write in bullet points and numbered lists to be more clear.
Food production facility, dry pet foods (mainly oven dried beef, chicken, and potatoes treats).
CCP1: water activity less than 0.55 to 0.60 (depends by the products), so very dry products.
The main difficulty for me to interpret the results from the external lab is that when they delivered the swab kit it wasn't the classic 25 or 100 cm2 frame with cotton swabs.
We had a sterile impregnated sponge to pass over the hands, or the surfaces, or to shoot with compressed air (to test the air).
So, in the results, I don't have an actual CFU/cm2 but CFU/swab. ????
1) Hands swabs
Swabbed the sponge on supposedly clean gloves DURING production:
• Finished products, while packaging
• While checking the CCP1 on finished products
Results:
Gloves while packaging:
Employee 1:
Aerobic Colony Count 1200 CFU/swab
Coliform (Petrifilm) <10 CFU/swab
E. coli (Petrifilm) <10 CFU/swab
Employee 2 (same order as above):
790 CFU/swab
<10 CFU/swab
<10 CFU/swab
Gloves while measuring the CCP1:
Aerobic Colony Count 1600 CFU/swab
Coliform (Petrifilm) 160 CFU/swab
E. coli (Petrifilm) <10 CFU/swab
Several samples from different rooms.
They are all very similar, in this range:
Aerobic Colony Count <10 CFU/swab (only 1 sample had 25 CFU/swab... how about this one too?)
Coliform (Petrifilm) <10 CFU/swab
E. coli (Petrifilm) <10 CFU/swab
Tap water (in this case it's easier, it's per mL):
Aerobic Colony Count HGMF 60 CFU/mL
Coliform HGMF <1 CFU/mL
E. coli HGMF <1 CFU/mL
What do you think about these results?
Thank you very much, I really appreciate your help, especially for the mistery of the hands without actual measured area.