Yep want to tenderize meat ,use Cola as Phosphoric acid breaks down proteins .
Also papaya, pineapple ,Kiwi do also to name a few . Papaya is MY favorite as it leaves little after flavoring .
Best pork whole hog ,I've ever eaten was done by a friend of mine like in the 79-80 period . I helped him dig a pit we filled it with Live Oak and Mesquite and granite rocks started the fire ,left it . Had the Hog already cleaned and refrigerated on ice in a tarp lined packing container . We mixed a mild Cajun rub and after mopping that hog with apple cider and papaya rubbed it literally . We then wrapped in in cheese cloth had a few Home brews courtesy of the Doc . ( I was a known brew master in college ,as I was a Chem major ) . So we went back too the pit tossed in some sizable 12-18 inch boulders ,so as to line the pit thoroughly, took coals out ,put some more wood on . We then took cactus leaves Nopales prickly pear cactus leaves ,dropped them all over bottom of pit . We then wrapped Banana leaves all around the Hog ,tied with butchers tine . Dropped it in , we had taken buckets coals out already ,so more Nopales on top tossed coals on them with a small amount of Oak and mesquite ,let it go for 15 -20 minutes . Before finally putting tin over the top and covering edges with dirt . We finished around midnight . Opened it up around 5:00PM the next afternoon ,as he was having a Big B Day party . Talk about juicy succulent flavorful ,piping hot when we took it off and I realized WHY we used cheese cloth , the meat fell away from the bones . I had made 7 gallons of Salsa and it went within 90 minutes as did 3/4 of that Hog . So many packages of tortillas ,we had two grills just cooking them . Don't even want to contemplate how much alcohol was consumed Beer bottled and Keg-ed ,wine Tequila Whiskey Gin and lord only knows what else . Won't even guess how many people showed up but enough there were NO leftovers ; ONLY Hangovers !. Forgot to mention I also made 10 Gallons of Guacamole ,as we had an Avocado ranch ,his Wife made a massive amount of pinto beans and rice .
We figured there would be tons of left overs ,boy did we blow that part !!.
People who didn't like pork ,were in lines for seconds and thirds . People talked about that party for 10 years .