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A comment on I reverse engineered McDonalds’ internal API. Parent comment

Re:I reverse engineered McDonalds’ internal API by missedthecue on Thursday October 22, 2020 @03:27PM (#24862330)
How hard is it to devise an ice cream machine with a simpler sanitation process?
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Re:I reverse engineered McDonalds’ internal API by cm2012 on Thursday October 22, 2020 @03:41PM (#24862490)
Considering McDonalds is on the forefront of food automation tech, probably harder than you think.
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Re:I reverse engineered McDonalds’ internal API by joezydeco on Thursday October 22, 2020 @08:01PM (#24864699)
Well, not always on the forefront, but they're the best at scaling it up reliably once they get it working. They test the living hell out everything they ship.
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Re:I reverse engineered McDonalds’ internal API by amelius on Friday October 23, 2020 @07:15AM (#24868242)
How about some redundancy then? Two machines instead of one.
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Re:I reverse engineered McDonalds’ internal API by madeofpalk on Thursday October 22, 2020 @04:26PM (#24862918)
I would have imagined someone in technology (or at least enough to read HN) would understand the hidden complexities of things they're not intimately familiar with
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Re:I reverse engineered McDonalds’ internal API by missedthecue on Thursday October 22, 2020 @04:52PM (#24863178)
Well I don't, hence why I'm asking...
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Re:I reverse engineered McDonalds’ internal API by ajford on Thursday October 22, 2020 @06:49PM (#24864115)
Pasteurization via heating the entire machine to a high temp and holding for some time is likely the simplest you can get. No need for cleaning solutions, flushing, etc. Simply heat the thing up for a few hours.

As for duration, that's a function of temperature and desired safety margin. The higher temp you go to sanitize, the faster you can sanitize, but if they're heating the ice cream mix as well, there's likely a limit to how high they can get without damaging/altering the mix. So the other variable is time, and that's probably what leads to the multi-hour sanitize cycle.

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