Got to remove this comment. It's not food grade.

I did find this: https://www.amazon.com/Gluten-Free-Remedies-Succinic-Acid-250mg/dp/B00IFJC4GG/ref=sr_1_25?keywords=succinate+supplement&qid=1636314685&sr=8-25 A tad more expensive, but explicitly food grade.

The post is fine and it will stay up. No one has a monopoly on succinic acid. :) And I think that Brad has more than enough business volume at the moment, if his recent supply issues are any indication.

I actually have some succinic acid powder on order from amazon myself. I won't link it here because it's not food grade, but I did find a supplement that is. (Though it's several times more expensive.) If someone does find a food grade powder source they're free to link to it here. This is not r/fireinabottle. :)