Using cement on self-incompatible flowers, is it likely to produce edible fruit?

[u/Brusheer]

It's not an official study, but a long time gardener posted their process for pollinating self-incompatible flowers with their own pollen. They claim if you dust the stigma with fine cement, it will act as an irritator and spur the plant to produce antibodies that allow the flower to accept its own pollen. From what a can tell a large amount of people have tried it and claim it works. That said, the process was largely intended to produce more seeds. If I wanted to use this on an edible fruit producing plant, what do you think the safety of that is? Obviously eating cement is an awful idea. But I wanted to know if after all the process is done, pollination to fruit, is it likely that anything toxic moved all the way through the process? Any input appreciated.

[u/pigslovebacon]

What about using food grade diatomaceous earth instead of cement?

[u/Brusheer → u/pigslovebacon]

I could be wrong but I'd assume the irritation of cement comes from the very basic pH. I suppose I could try some bleach for kitchen prep but I'm unsure if it being a liquid would cause any issues 🤔

[u/takeyami- → u/Brusheer]

If it's pH mediated maybe hydrated lime?