It may be difficult or impossible to control food quality well enough that every container be mealworm-free. But I expect metrics to be kept so someone can monitor whether or not a supply chain is doing something notably reckless.
Delhaize history
Delhaize started off as a food producer who was regarded as a brand of high quality products. Then they became a big grocery store chain. So of course they sell their own products. And in fact I have never seen Delhaize products sold by other stores.
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When I tried to return the rooibos, the CSR asked for a receipt. I did not have one, so he refused. I said: look, it’s brand of the store, so of course it came from here. He argued that it may not have come from /this/ precise store.
I don’t give a shit about getting a 2 euro refund. My whole point was to get the incident recorded so they can look into QA issues. So then I reported this to the food safety authority in Belgium. It’s possible they acted on it, but they sent no acknowledgement. Which effectively signals to consumers they are wasting their time by reporting quality issues.
Is this all normal? I would expect a public health agency to be keen to encourage reports of worms packaged in food.
I think the norm is (sadly enough) to use Twitter. Someone tweets “worm in my food” with a good photo, it gets some attention, then the supplier is forced to try to remedy their embarrassment. This hack doesn’t work for non-Twitter non-Facebook users.
(edit) attached a pic
Call the Dutch number for your store, and just pretend to be confused. They do take it seriously and are able to process this regardless. Also, calling several times can help.
Often times companies intentionally under-train some employees so they can't process some things