I agree with the above posters. I just looked at my most recent hazard analysis, and don't see how one could "carry over" the hazard of bacteria being present in the raw materials. That hazard only appears in the Receiving step. The Storage step, for example, only considers growth of microbes.
One always assumes that there are a few bacteria present in the raw materials. There would need to be NASA-level sterilization to completely eliminate all bacteria; in food safety we are talking about significantly minimizing or preventing the hazard of bacterial contamination.
Hmm... I always viewed it differently.
Let's just use foreign material in raw seeds as an example. You know that you are going to get particulate in your seeds that you will sieve later. It is introduced in the receiving step because you know the product comes in that way. You're not going to eliminate the particulate when you store the raw materials. However, this particulate is still there when you store it. It hasn't disappeared. When the seeds have been put into the holding hopper, the particulate is still there. When the seeds are passed through the auger system, the particulate is still there. At the point of sieving, the particulate is removed, so I would no longer list this as a hazard after this step.
Again, that's just always how I viewed it. Auditors were always happy with it.
On the other hand, I could see how you would list something where the hazard is introduced and where it is controlled. I could also see how hazards could be potentially missed downstream in the analysis, if it isn't carried through.
Also - yes I realize we're talking about micro, but foreign material is sometimes easier to explain in examples.
Edited by QAGB, 01 November 2019 - 08:13 PM.