We are having an issue with some random packages bloating. The odd thing is that they are all going to the same customer - we do batches of hummus for ourselves and all of our customers at once.
So, other than doing ATP, APC, Yeast/Mold swabs on the cups, film, hopper and filler, ensuring sanitation is alright, and sending out samples of finished product to get tested for APC and Lactic Acid bacteria, what else should I be looking at/for? Could the transport company be an issue - should I send data loggers with the product going to this customer? Could the cups or film really be contaminated; we keep them bagged after they are received, and the bag is only disturbed when cups and lids are removed. Could it be employee practices?
Product is hummus. Any help is most appreciated.