If you’re a fan of marinated flank steak, you might be wondering how long it can stay in the fridge without going bad. The answer to this question depends on a few factors, including the ingredients in the marinade, how well-sealed the steak is, and the temperature of your fridge.

Ingredients Matter
The ingredients in your marinade can affect how long your marinated flank steak will last in the fridge. Acidic ingredients like vinegar or citrus juice can help to tenderize the meat and add flavor, but they can also break down the protein in the meat over time. If your marinade contains a lot of acid, it’s best to use it within 24 hours.

Sealing is Key
To keep your marinated flank steak fresh for as long as possible, it’s important to store it properly. Make sure that your steak is sealed tightly in an airtight container or plastic bag before putting it in the fridge. This will help prevent bacteria from getting into the meat and spoiling it.

Temperature Control
The temperature of your fridge can also affect how long you can keep marinated flank steak. According to food safety guidelines, raw beef should be stored at a temperature between 34°F and 40°F (1°C and 4°C). It’s important to keep your fridge at this temperature range to ensure that your marinated flank steak stays fresh for as long as possible.

How Long Can Marinated Flank Steak Stay in Fridge?

In general, marinated flank steak should be consumed within three days of being stored in the fridge. However, this timeline may vary depending on the factors mentioned above:

  • If your marinade contains acidic ingredients like vinegar or citrus juice, use it within 24 hours.
  • If properly sealed and stored at an ideal temperature range of 34°F to 40°F (1°C to 4°C), the marinated flank steak can last up to five days in the fridge.
  • If you’re not sure if your marinated flank steak is still good, use your senses to determine if it’s safe to eat. If the meat smells off, has a slimy texture, or has an unusual color, it’s best to err on the side of caution and throw it out.


Marinating flank steak is a great way to add flavor and tenderness to this cut of meat. However, it’s important to keep food safety in mind when storing and consuming marinated flank steak. By paying attention to the ingredients in your marinade, sealing your steak properly, and monitoring the temperature of your fridge, you can enjoy this delicious dish for up to five days while keeping yourself and others safe from foodborne illness.