I believe after a massive food safety issue due to misuse, they were reformulated with heat treated ingredients in an acceptance that people would use it for this purpose. Application of the HACCP principle I alluded to could have prevented the massive food safety issue first or at least detected it at an earlier stage.
So, in an attempt to rein in this thread, the evolution of this is interesting. Taking Onion Soup mix for example:
- Company starts producing Soup Mix, with the original intent to be added to hot (enough to kill salmonella) water.
- Maybe they don't control for salmonella, as package directions indicate an at home kill step. They put "COOK THROUGHLY" on the front of the box.
- Ingenuity (recklessness?) of the general public starts repurposing into cold dips.
This is my point. And the explosion of food blogs, vlogs etc etc means someone with zero food safety knowledge can start to recommend foods to be used in ways they were never intended. BUT at least these are now searchable and trends are easier to spot so while they move quickly, at least someone who is looking into food trends, e.g. commercial team members, can flag these risks to HACCP teams.
There is a grey area of "never going to be safe" which I find fascinating. Raw chicken, blanched frozen peas. Those two things will never be safe unless they're cooked chicken processed well and with a sensible shelf life or fully cooked peas which would obliterate quality on reheat. As more consumers grow up in households where cooking is not a skill shared with kids, this could become worse.
Then you have large movements of people going on. This can in itself create risk. For example, back in the mid 2010s, there were issues with the British Chinese community and daffodil poisoning.
Keep daffodils away from food, supermarkets warned - BBC News
Daffodils are commonly sold in early spring and were commonly merchandised close to vegetables and sold in bud. These were confused as a chive and eaten causing poisonings.
Much as I deeply do not want to go back to the doom loop of earlier in this thread, it did prove that national recipes which are common in one country can be uncommon in another. I was in Switzerland recently and some meals which I saw in the supermarket were unclear to me if they were ready to reheat or ready to eat. The product looked fully cooked but it's only because I speak enough German that I could tell they weren't. If you were a recent immigrant from Syria or Poland, would you know?
Of course you can't protect against the mindblowingly stupid and I'd only suggest what is reasonable to predict but I just find when I look at HACCP plans, this is done REALLY badly. Most HACCP teams are not considering it at all.