No one is dying from repairing a milk shake machine. McDonalds is concerned about poorly mixed shakes hurting their brand, which they regard as nearly as bad.
https://en.wikipedia.org/wiki/Listeria is much more common in unpasteurized milk, but can also contaminate pasteurized milk. Infection in humans has roughly a 20% case fatality rate.
Listeriosis is rare, but if every McDonalds were serving spoiled dairy products, a one-in-a-million chance results in several deaths.
No one is dying from actually repairing a machine. However, the soft-serve mix is very conducive to bacterial growth. People messing with the sterilization or the self-checks for sterilization could easily result in bacterial food borne illness which can be deadly.
>People messing with the sterilization or the self-checks for sterilization could easily result in bacterial food borne illness which can be deadly.
Yes, it's deadly, this is exactly the reason why we should make sure that McDonalds staff can properly operate their icecream machines by making the machine as easy to use as possible. If you have untrained staff that keep running the machine out of specs because the machine is cryptic and user hostile to them then operator errors could slip past the machine self checks because machines aren't perfectly reliable.
By instructing McDonalds franchises how to properly operate their machines and by updating the UI of the machines to properly warn of dangerous operating conditions the franchises can achieve greater safety for McDonalds customers.
As it is right now, McDonalds is actively endangering its customers with these machines.
> As it is right now, McDonalds is actively endangering its customers with these machines.
I would say it is quite clearly the opposite. Anything which could introduce safety risks to a customer necessitates a visit from a trained service technician to investigate.
