Learn how to cook kelp noodles for soups, stir-fry, pasta-like dishes, and more! By following my easy, step-by-step instructions, you’ll learn how to make any dish you want using these noodles.

If you are less familiar with these noodles, see what are kelp noodles and the various ways you can include these gluten-free, paleo noodles in your everyday meals.

Softened kelp noodles with baby bok choy and shiitake served on a white plate with chopsticks on the side
Learn how to cook and use kelp noodles the simple way!

What are these noodles

Kelp noodles are low-carb and made from seaweed, sodium alginate, and water. The noodles are easy to prepare and go with a lot of common dishes. To learn more about them, see my article on kelp noodles.

Benefits of kelp noodles

There are many benefits of seaweed noodles. Besides being low-carb, they are also fat-free and gluten-free, and are rich in minerals such as iodine. Plus, each serving only contains six calories!

The noodles are flavorless, so it’s easy to cook any dish using these noodles. Add them to salads, stir-fries, and soups without cooking them.

How to cook the noodles


3 simple ingredients in the photo to show how to soften the kelp noodles
  • Kelp noodles
  • Lemon juice
  • Baking soda

Prepare and soften the noodles

A step-by-step photo shows how to cook kelp noodles and prepare them
  1. Remove noodles from the packet and rinse them lightly.
  2. Soften the noodles by massaging them for 1 minute in a mixture of lemon juice and baking soda.
  3. Rinse them under running water. Drain the water and the noodles are ready to eat.

Tips on softening the noodles

  • They only need a 1-minute soak. Oversoaked noodles will result in mush.
  • You can also combine baking soda with lime juice if you don’t have any lemons.
  • After the treatment, the clear seaweed noodles are ready to eat. You don’t need to boil the noodles.

Where to buy the noodles

You can easily buy these keto kelp noodles if you know where to look.

The best way to get them is to order directly from sea tangle company or gold mine, which are famous brands for these noodles. Alternatively, you can also buy them from Amazon or your local Whole Foods.

Recipes you can use

Once prepared, you can use them for many kelp noodle recipes, such as stir fries and soups — here are some ideas you can add to your list.

Make a low calorie kelp noodle stir fry by giving pad woon sen a try. My Thai glass noodle stir fry hits the spot with its sweet and savory flavors from the fish sauce and yummy chicken and broccoli. You can also swap the sweet potato noodles in keto japchae with low carbs kelp noodles.

On days when you need a pick-me-up, add them to this hearty winter melon soup with meatballs. If you love vegan hot pot as much as I do, they make a great alternative to udon or white rice noodles.

Common FAQ

What do kelp noodles taste like

They are flavorless, making them a great low-carb alternative for everyday meals.

Are kelp noodles keto friendly

Yes. With only a net six calories per serving, kelp noodles are paleo, perfect for low carbohydrates recipes. (source)

Can you boil kelp noodles

They are ready to eat after you soak them briefly in a lemon and baking soda ‘bath’. So you don’t need to boil them.

Are kelp noodles already cooked?

Although packaged noodles are edible, I highly recommend softening the noodles before eating them for the best texture.

Storage and make-ahead

  • You can keep unopened packaged noodles in the pantry, as they are shelf-stable.
  • Once opened, they should be stored in the fridge and used within 3 days.
  • The noodles cannot be kept in the freezer.

More ways to enjoy the noodles

When you know how to prepare kelp noodles, they can be used as a substitute for rice, noodles, and even pasta. Check out some of the fun variations that you can try.

Toss the softened noodles with a few tablespoons of these sauces to make different appetizing “pasta” recipes with exciting flavors. Combine them with garlic chili sauce for something flavorful and spicy. For an umami savory dish, throw in shacha sauce with the noodles.

If you want a unique combo, raw kelp noodles are delicious with a drizzle of creamy Thai peanut sauce on its own, or in a fresh salad bowl. You can also dip them in my spicy, sweet, and sour Thai dipping sauce. Pair these dishes with crunchy vegetables such as carrots and pepper.

Umami Tips

  • They are flavorless noodles that are perfect for all types of dishes.
  • The noodles are gluten-free, a good source of iodine, and a great low-carb alternative.
  • You don’t need to boil them but you need to soften them before eating.
  • After crunchy kelp noodles are softened, they are ready to eat.
A close shot shows kelp noodles cooked with bok choy and shiitake mushrooms served on a white plate
5 from 2 votes

How to cook kelp noodles recipe

Prep Time: 1 minute
Total Time: 1 minute
Servings: 2 serving
Author: ChihYu Smith
Learn how to cook kelp noodles and the right way to soften the seaweed noodles easily with great flavor and taste, plus recipes you can use!
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  • Take the noodles out of the packet and discard the water. Lightly rinse the noodles under tap water for a few seconds.
  • In a large bowl, mix the lemon juice with baking soda with a spoon. You’ll see bubbles immediately. Immediately add the noodles to the bowl, and massage them for about 1 minute. The noodles will soften.
  • Transfer the noodles to a colander rinse under running water for 1 minute. Set aside to drain well. The noodles are ready to eat. You can combine the noodles with your favorite dressing, cooked protein, and vegetables.


  • kelp noodles are fat-free and gluten-free, and are rich in minerals such as iodine.
  • These noodles are flavorless, so it’s easy to cook any dish using these noodles. After you soften the noodles, add them to salads, stir-fries, and soups without cooking them.
  • Recipes you can try:
Course: Side Dish
Cuisine: Asian
Keyword: how to cook kelp noodles
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