The likely hood of getting the anaerobic and specific growth conditions for botulinum spores to germinate within a flow hive are infinitesimally small. You simply cannot create the degree of anaerobic conditions needed for sporulation, let alone the high pH. Clostridium botulinum will not grow in acidic conditions (pH less than 4.6), and therefore the toxin will not be formed in honey (acidic) or alongside fermenting yeasts.
I do think you are creating a bit of unnecessary scaremongering, when common sense would be a more practical approach.
Just back from taking my daughter to uni to find Truble gone.
Normally I hate censure but in this case I support Truble aka Thymallus being banned on the grounds that his posts were irresponsible and dangerous all under the guise of being an expert in microbiology.
The greatest proportion of botulism poisoning in China has been from fermented foods. Here's more incidents of fermented foods growing botulinum:
http://www.theatlantic.com/health/archive/2013/12/how-not-to-die-of-botulism/281649/
https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5605a2.htm
Whilst it's true that C. bot won't grow in acidic pH, it's presumptuous to assume that the pH in the trough will remain at 4.6. There are too many other factors influencing pH to be confident that the pH in the trough will be universally below 4.6. So for example using a bottle brush dipped in bleach prior to use would be enough to create an alkaline pH more favourable to C. bot growth.
I really really don't like the thought of using water and a bottle brush in situ to clean the troughs. That sounds like disastrous advice as it will be really difficult to dry the trough out (whilst it's in place within the hive) and the added moisture from the cleaning process will heighten risk.
Tremyfro - I'm not frustrated - just concerned that you guys using Flow hives continue to remain safe. Plastic has never been used in this way before in beekeeping in an environment susceptible to high moisture levels, fermentation and preferential temperatures.
As for dry cure then that's a completely different process. And yes you make me feel hungry at the thought of your home cured bacon. That said, you cook bacon which helps denature botulinum toxin (if ever present).
Using honey from a Flow frame for curing meats adds another dimension. Might be prudent to use orthodox honey or honey harvested from sanitised frames until there is greater confidence in the safety of Flow frames under stressed conditions.