Allowed maximum Micro TPC limits in spice and herb environment?

Good Day Food Safety Team

Trust you are all well and keeping safe.

I require some advice regarding Micro re TPC acceptable limits in a Spice and Herb environment 

Our TPC limit is set at 100 on air plates, however we are always receiving positive results eg. 160, TNC (too numerous to count), 160, 200, 160, 124, We were asked to increase the limits, but need to know what is the maximum allowed limit.

Thanking you kindly for your assistance 

Good Day Food Safety Team

 

Trust you are all well and keeping safe.

 

I require some advice regarding Micro re TPC acceptable limits in a Spice and Herb environment 

 

Our TPC limit is set at 100 on air plates, however we are always receiving positive results eg. 160, TNC (too numerous to count), 160, 200, 160, 124, We were asked to increase the limits, but need to know what is the maximum allowed limit.

 

Thanking you kindly for your assistance 

Hi Kelpack,

I presume you are talking about sedimentation (settle) plates ?

Need to know (a) units of your numbers, (b) yr time of exposure, (c) diameter of yr plates ? 

eg a typical datum might look like 100 cfu/cm2/hour

PS - and possibly the media/incubation time/temperature involved.

Yes Charles 

It is settle plates 

Reading is currently as 

CFU/area exposure 

Yes Charles 

 

It is settle plates 

 

Reading is currently as 

 

CFU/area exposure 

Hi Kelpack,

APHA - 30cfu.cm^-2week^-1