One of the most effective ways to tenderize your meat is by using beer. Beer contains alpha acids and tannins that help break down fibers in meat, making it more tender and flavorful. Marinate using beer for an hour or more before grilling.
Can you use beer as a meat tenderizer?
Beer doesn't tenderize meat any more than lemonade (nor does wine or vinegar-based marinades). And be careful: If meat is left in the liquid too long, it will take on the grayish hue of a government-issue metal desk.
What kind of beer is good for marinating?
You can use any local wheat beer or Hefewizen style beer. I find this style of beer works very well in this marinade. One of the best things about using a beer in a marinade is that it pretty much guarantees that you will end up with a food that pairs well with the beer that you used.