How to Microwave a Lobster (Quick Guide)

Lobster, a culinary delicacy, is preferred for its exquisite taste. 

For those seeking a quick way to prepare this delectable crustacean, your microwave offers a convenient solution.

Just like how you microwave salmon, lobster is no different. 

In this article, we will provide step-by-step instructions on how to microwave a lobster to perfection. 

Selecting the right lobster

When embarking on your lobster microwaving adventure, it is crucial to select live lobsters for the freshest and tastiest outcome. 

Choose lobsters that are lively, exhibiting a healthy, active demeanor. 

Additionally, consider the size of the lobster, aiming for a weight that suits your preferences and serving size.

Related post: How to defrost Lobster Tails in the microwave

How to microwave lobster (Step-By-Step)

To microwave lobster, you will need the following ingredients and follow these instructions:


  • 1 whole lobster
  • 2 tablespoons of butter
  • Lemon wedges (optional)
  • Salt and pepper to taste


  1. Thaw the lobster if frozen by placing it in the refrigerator overnight.
  2. Rinse the lobster under cold water to remove any excess dirt or debris.
  3. Using a sharp kitchen knife, carefully cut the lobster in half lengthwise.
  4. Remove the green tomalley and any dark sac near the head (if desired).
  5. Place the lobster halves in a microwave-safe dish, shell-side down.
  6. Add the butter evenly over the lobster meat.
  7. Season with salt and pepper to taste.
  8. Cover the dish loosely with a microwave-safe lid.
  9. Microwave on high power for 4-6 minutes, or until the lobster meat is opaque and firm.
  10. Carefully remove the dish from the microwave (use oven mitts or a towel as it will be hot).
  11. Let the lobster rest for a minute or two.
  12. Serve hot with lemon wedges on the side, if desired.
  13. Enjoy your microwave-cooked lobster!

Note: Cooking times may vary depending on the wattage of your microwave, so adjust accordingly. Always exercise caution when handling hot dishes.

Seasoning and flavoring options

While the natural flavor of lobster is a delight on its own, enhancing it with seasoning and flavoring options can elevate the culinary experience. 

Consider incorporating complementary herbs, spices, and marinades to add depth and complexity to your microwaved lobster. 

Experiment with various flavors to suit your palate and preferences.

Precautions to take while microwaving lobster

When microwaving lobster, it’s important to follow these precautions:

  • Use a microwave-safe dish

Use a dish that can withstand high temperatures without melting. The Simax Clear Glass Casserole Dish is a convienient option.

  • Cover the lobster loosely

To prevent splattering and maintain moisture, cover the lobster with a microwave-safe lid, leaving a small vent for steam to escape. The vented Tovolo 47005-200 Large Collapsible Microwave comes in handy.

  • Microwave in short intervals

Microwave the lobster in short bursts of time, typically 1-2 minutes at a time, to ensure even heating. This helps to avoid overcooking. 

  • Rotate

Turn the lobster halfway through the cooking process to ensure even heating.

  • Let it rest

After microwaving, allow the lobster to rest for a minute or two before handling. 

This helps distribute the heat evenly. It also allows the juices to settle.

  • Handle with care

Use oven mitts like the Gorilla Grip Heat and Slip Resistant Silicone Oven Mitts when handling the hot dish to avoid burns. 

Lobster shells can retain heat for a while after microwaving.

Alternative cooking methods for lobsters

Besides microwaving, there are other popular methods to cook lobsters, such as boiling, steaming, or grilling. 

Each method offers a unique taste and texture. 

Choose the cooking method that best suits your preferences and available resources.

How long should you microwave a lobster?

The cooking time will depend on the size and power of your microwave. 

As a general guideline, you can start by microwaving a whole lobster for 1-2 minutes per pound.

However, it’s crucial to use a food thermometer to check if the internal temperature reaches at least 145°F (63°C), ensuring it’s fully cooked.

The Alpha Grillers Instant Read Meat Thermometer is handy for checking the internal temperature.

Frequently Asked Questions

Should I cover lobster when microwaving?

Yes, covering the lobster with a microwave-safe lid like the Tovolo Vented Collapsible Medium Microwave Cover is recommended to help retain moisture and ensure even cooking. 

Make sure to leave a small vent for steam to escape.

How do I know when the lobster is cooked?

To determine if the lobster is cooked, check the internal temperature using the ThermoPro TP19H Digital Meat Thermometer

It should reach 140°F (60°C) for the meat to be fully cooked and safe to eat. 

The lobster should also have a bright red color and the flesh should be opaque.

Can I cook a whole lobster in the microwave?

Yes, you can cook a whole lobster in the microwave. 

However, it’s recommended to cook smaller lobsters to ensure even and thorough cooking.

Should I add water when microwaving a lobster?

Adding water is not necessary when microwaving a lobster. 

Lobsters naturally contain enough moisture, and microwaving without additional water will help preserve the flavor and prevent the lobster from becoming waterlogged.