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> The self-cleaning ice cream machine was requested by McD to solve the problem of contamination in their ice cream machines Doesn't Starbucks have a self-clea
by musicale 4y ago
> The self-cleaning ice cream machine was requested by McD to solve the problem of contamination in their ice cream machines
Doesn't Starbucks have a self-cleaning coffee machine (Clover machine) that is fairly reliable? (Also presumably needs to flush out residue between cups, etc..) Though I imagine coffee/hot water are better at self-disinfecting.
There are also all of those automated/unattended frozen yogurt stands, which seem fairly reliable, though I don't know how or how often (if ever?) the machines are cleaned/disinfected.
In any case, it seems like there is an opportunity here for technological improvement.
- joezydeco 4y agoThe McD machine cleans itself by heating everything (machinery and dairy mixture) internally above the pasteurization temperature and then quickly cooling it back down. Kind of a different animal than flushing coffee grounds away with hot water. I did a proposal for some engineering on one of those automated froyo machines. Most are just a dirt-standard freezer with a robot cup handling & topping dispenser attachment. There was no requirement for self-cleaning. And, judging by the finished ones I've seen in public, there's no way I would ever eat out of one of these. I would be surprised if they're cleaned up more than once a week and everything in that chamber is at ambient temps.