seans_potato_business
Senior Cook
Are those wooden meat-tenderising hammers intended only for steaks/chops etc or can they also be applied to big joints of meat?
If you want to tenderize larger pieces of meat though, you can marinade it. One particular technique I picked up from my Filipino in-laws is soaking pork in 7-UP or Sierra Mist. The catch here is to not over marinade it, or the meat becomes mushy. For pork, I don't soak it for longer than 6 hours.
"There is a commonly held belief that soaking a tough cut of meat in a marinade will make it tender. Sadly, this just isn't true much of the time. While some marinades are very successful at adding flavor to meat, chicken, and fish, they are, with one exception, a disaster at tenderizing."
Here's the full article by food scientist Shrley Corriher: Marinades Add Flavor but Don't Always Tenderize - Fine Cooking Recipes, Techniques and Tips
Your best bet might be to braise the meat.