We authorized a third party manufacturer for our flour mix product. Since we are food trader company as of now. I would like to ask if it is possible that fumigation is not effective, because there are still weevil or larva present upon sieving during store operation. It results that there are churro mix products kept on returning to our head office by our authorized dealers. I suspected based on researching that there is a deviation during processing of the product.
Thank you. Hoping for a supporting message for reliable information.