We’ve all seen the videos of what happens externally… but what if you have this combination inside you?
I’m hoping you just burp a lot.
IIRC the explosive reaction depends on the microsurface of the Mentos providing massive numbers of near perfect nucleation sites for bubble formation. Once a Mentos goes down your gullet and gets coated with saliva and moisture starts immediately dissolving the surface I’m betting it’s surface characteristics have changed substantially by the time it hits your stomach.
If you do this though you can get the reaction like Mythbusters did.
Mythbusters did an episode on this. End result: you might be a little gassy, but that’s about it.
The acid in your stomach would probably also tend to mess up the chemical reaction.
On Youtube there are many vids of people doing this and vomiting violently. Search for the keywords - Coke mentos vomit. I’ve also seen one on TV where even an hour later the guy was still in pain. It on the news no less, it was a very slow news day.
Or, has the OP seen the vids and want to know the actual physical damage done internally?
internally? - YouTube clip
I can’t see the Youtube clip, but I’d be surprised if people get a bad reaction from doing this. Like astro said, the exlposive reaction is purely a surface effect, so I don’t see why it should occur in your stomach once everything’s all mushed up.
It’s not a chemical reaction. It’s nucleation - the CO2 in the pop comes rapidly out of solution.
Assuming you swallowed the Mentos without chewing and very quickly chugged the pop, I could see how one would vomit and/or be in no small amount of discomfort. Some of the carbonation would come out of the pop when you swig it, and I don’t know that anyone could chug 2L of pop very quickly, so the effect in the stomach would be less in magnitude than that in the bottle.
Not something I’d seek out to try, though.