Flank steak is a popular cut of beef that is known for its rich flavor and tender texture. It is a versatile cut that can be cooked in a variety of ways, from grilling to broiling to pan-searing.

One question that often comes up when cooking flank steak is whether or not it needs to be marinated before cooking. In this article, we will explore the reasons why you might want to marinate your flank steak and provide some tips for doing so effectively.

What is Flank Steak?

Before we dive into the topic of marinating flank steak, let’s first take a moment to discuss what this cut of meat actually is. Flank steak comes from the lower chest and abdominal muscles of the cow. It is a long, flat cut that is often used in dishes like fajitas, stir-fries, and sandwiches.

Why Marinate Flank Steak?

There are several reasons why you might want to consider marinating your flank steak before cooking it. Here are just a few:

1. Flavor Enhancement

Perhaps the most obvious reason to marinate your flank steak is to enhance its flavor. A good marinade can add depth and complexity to the meat, infusing it with herbs, spices, acids, and other ingredients that complement its natural taste.

2. Tenderizing

Marinating can also help tenderize tougher cuts of meat like flank steak. The acid in many marinades (such as vinegar or citrus juice) can break down some of the tough muscle fibers in the meat, making it more tender and easier to chew.

3. Moisture Retention

Finally, marinating can help your flank steak retain moisture during cooking. This is especially important with leaner cuts like flank steak that can easily dry out if overcooked.

How to Marinate Flank Steak

Now that we’ve covered why you might want to marinate your flank steak, let’s talk about how to do it effectively. Here are some tips to keep in mind:

1. Choose the Right Marinade

The first step in marinating flank steak is to choose the right marinade. There are countless marinade recipes out there, but most will include some combination of acid (like vinegar or citrus juice), oil (like olive oil), herbs and spices, and other flavorings like soy sauce or Worcestershire sauce.

2. Marinate for the Right Amount of Time

Once you’ve chosen your marinade, the next step is to actually marinate your flank steak. The amount of time you’ll need will depend on several factors, including the thickness of the meat and the strength of your marinade. In general, though, you’ll want to marinate your flank steak for at least 30 minutes and up to 24 hours.

3. Properly Store Your Flank Steak While Marinating

While your flank steak is marinating, it’s important to store it properly. You’ll want to place it in a sealable plastic bag or a covered dish in the refrigerator.

4. Don’t Overcook Your Flank Steak

Finally, when it comes time to cook your flank steak, be careful not to overcook it. Flank steak is best served medium-rare or medium, so aim for an internal temperature of around 130-135 degrees Fahrenheit.


So there you have it – while it’s not strictly necessary to marinate flank steak before cooking it, doing so can certainly enhance its flavor and texture. Whether you choose to marinate or not ultimately comes down to personal preference and cooking style.

If you do decide to marinate, be sure to choose the right marinade, marinate for the right amount of time, store your flank steak properly while marinating, and avoid overcooking it. With these tips in mind, you’ll be able to enjoy a delicious and tender flank steak every time.