Marinating is a great way to add flavor and tenderness to any cut of meat. One of the most popular cuts for marinating is flank steak.

However, many people wonder if it’s possible to marinate flank steak for too long. In this article, we’ll explore the answer to that question and give you some tips on how to properly marinate your flank steak.

What is Flank Steak?

Flank steak is a long, thin cut of beef that comes from the abdominal muscles of the cow. It’s a flavorful and relatively inexpensive cut that’s perfect for grilling or broiling.

What Does Marinating Do?

Marinating involves soaking meat in a flavorful liquid for an extended period of time, usually several hours or overnight. This allows the meat to absorb the flavors of the marinade and become more tender.

Can You Marinate Flank Steak for Too Long?

Yes! While marinating can be great for adding flavor and tenderness to your meat, leaving it in the marinade for too long can have negative effects. The acid in the marinade can actually break down the proteins in the meat, causing it to become mushy and unappetizing.

How Long Should You Marinate Flank Steak?

For flank steak, it’s best to stick with a marinade time of 24 hours or less. Any longer than that and you risk over-marinating your meat.

What Should You Include in Your Flank Steak Marinade?

When making your marinade, be sure to include some acid (such as vinegar or citrus juice), oil (such as olive oil), herbs and spices (such as garlic, thyme, and cumin), and salt and pepper. This will give your flank steak plenty of flavor without overpowering it.

How to Marinate Flank Steak

1. Start by making your marinade. Combine your acid, oil, herbs and spices, and salt and pepper in a large bowl.

2. Place your flank steak in a large resealable plastic bag or a shallow dish.

3. Pour the marinade over the steak, making sure it’s completely coated.

4. If using a plastic bag, seal it and place it in the refrigerator for up to 24 hours. If using a dish, cover it with plastic wrap and refrigerate.

5. When you’re ready to cook the steak, remove it from the marinade and discard any excess marinade.

6. Grill or broil the steak according to your preferred method.


Marinating can be a great way to add flavor and tenderness to your flank steak, but be sure not to overdo it. Stick with a marinade time of 24 hours or less and include plenty of acid, oil, herbs and spices, and salt and pepper for maximum flavor. With these tips in mind, you’ll be able to marinate your flank steak like a pro!