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Why You Should Never Defrost Frozen Meat Inside of a Microwave

Defrosting meat in the microwave is unsafe due to uneven thawing, which can cause bacteria growth and affect texture. On top of that, quickly defrosting your meat could keep it in the danger zone for bacteria. The safest methods are thawing in the fridge overnight or using the cold water method!

By Cookist

Some of us defrost meat in the microwave to save time when we’re busy or because we forgot to get the package out of the freezer in time for it to defrost before cooking, but is this practice actually safe? Not according to Professor Costas Stathopoulos of Abertay University in Dundee. Using the microwave to thaw meat might seem like a quick fix, but it comes with several risks and drawbacks that could affect both the quality and safety of your meal.

Why is it Bad to Defrost Meat in the Microwave?

Microwaving meat to defrost it can lead to uneven thawing. Microwaves heat food from the outside in, which means the exterior of the meat may start to cook while the inside remains frozen. This uneven temperature distribution not only affects the texture and taste of the meat but can also create a breeding ground for bacteria. Imagine biting into a piece of meat that is simultaneously overcooked on the edges and still icy in the middle—not the most appetizing experience.


The Problem with Quick Defrosting

Speedy defrosting, whether in the microwave or by leaving meat out on the counter, is problematic because it allows the meat to spend too much time in the temperature "danger zone" (between 40°F and 140°F). In this range, bacteria multiply rapidly, increasing the risk of foodborne illnesses. While the microwave might save you a few minutes, it sacrifices the safety of your food. Think of it as trading a bit of convenience for a potentially nasty case of food poisoning.

Why the Microwave Isn't a Safe Thawing Tool

Beyond the uneven thawing and the danger zone issue, microwaves also can't guarantee that the meat will reach a safe internal temperature consistently. Some parts might heat up more quickly, leading to partially cooked spots, while others stay frozen. This inconsistency can result in undercooked meat once you proceed to cook it fully, which is a serious health hazard. Furthermore, the rapid defrosting process can compromise the meat's texture, making it tough and rubbery instead of tender and juicy.


The Safest Way to Defrost Meat

The safest and most effective way to defrost meat is to plan ahead and use the refrigerator. Place the meat in a container to catch any drips and leave it in the fridge overnight or for a day or two, depending on the size of the cut. This method keeps the meat at a safe, consistent temperature, minimizing bacterial growth. If you're in a pinch, you can also use the cold water method: submerge the meat in cold water, changing the water every 30 minutes to keep it cold. This approach is faster than the fridge but still maintains safety. By taking a bit more time, you'll ensure your meat is safe to eat and retains its best qualities.

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