TRiMiCri - Tool for Risk based Microbiological Criteria

TRiMiCri (Tool for Risk-based Microbiological Criteria) is a a software tool to evaluate, establish and compare criteria for Campylobacter on broiler meat. TRiMiCri is developed at the National Food Institute of the Technical University of Denmark (DTU Food) and, together with its tutorial, it can be downloaded from the internet.

TRiMiCri allows an evaluation of two types of microbiological criteria MCs):

  1. ML-MC (Microbiological Limit MC), where compliance is defined as the number of samples c out of a total n that is allowed to contain more than m cfu/g in the samples taken
  2. RRL-MC (Relative Risk Limit MC), where compliance is defined on the basis of the relative risk estimate associated to the n samples taken

This RRL-MC requires a baseline risk, like the mean annual risk in a country. TRiMiCri helps the user define this baseline risk.

TRiMiCri has three main functionalities:

  1. Enter your data and check whether your food lot complies with the microbiological criterion Quantitative data found in samples taken from a food lot can be evaluated for compliance against user-defined MCs
  2. Establish your own baseline risk and calculate relative risks of your food lots Semi-quantitative data found in representative samples can be entered to define a baseline risk that is needed for the evaluation of “Relative Risk Limit”-MCs.
  3. Decide on the most suitable microbiological criterion

The expected effect of setting specific microbiological criteria can be evaluated in terms of the estimated effect on public health risk and the percentage of non-complying food lots.

This can help food safety managers in defining the most suitable microbiological criterion, balancing public health concerns with burden on the industry.

For more information: tools.food.dtu.dk/trimicri

Download info folder: PDF