Kelp: What It Is and How to Use It

Kelp is a large brown seaweed harvested from cold ocean waters, dried and used as a savory seasoning, a soup-stock ingredient, and a mineral-rich addition to everyday cooking. Find it at William's Natural Foods, 12249 San Pablo Ave, Richmond, CA 94805, where it's a staple for customers making homemade broths and seasoning blends.

Available in Bulk

We carry kelp in our bulk herb section so you can grab the exact amount you want, from a spoonful to a full bag. Whether you need a pinch for seasoning or a generous scoop for a pot of stock, you take home exactly what you'll use — and our staff can help you find it.

What We Carry

• Kelp granules — sold by weight, easy to sprinkle as a seasoning or stir into dishes.
• Cut kelp leaf — the larger-cut form, ideal for simmering in stocks and soups.

Frequently Asked Questions

What does kelp taste like?

Savory and mildly salty with a deep umami character — think of the ocean flavor in miso soup or dashi. It's less "fishy" than many people expect and works more like a natural flavor enhancer than a featured ingredient.

How do you cook with kelp?

Simmer cut kelp in water for 15 to 20 minutes to make a simple mineral-rich broth base, then remove it before adding other ingredients. Kelp granules can be sprinkled directly onto food like salt — try them on eggs, roasted vegetables, popcorn, or in salad dressings.

What about kelp and iodine?

Kelp is naturally rich in iodine, a mineral the thyroid needs in small amounts — which is exactly why a little goes a long way. A sprinkle as seasoning is a modest amount; if you have thyroid concerns, it's worth checking with your doctor about how much seaweed fits your diet.

How should I store dried kelp?

In an airtight container in a cool, dry place. Dried kelp keeps for a year or longer; if it picks up moisture and softens, it's still fine for simmering into broth.

Did you know? Giant kelp (Macrocystis pyrifera) is one of the fastest-growing organisms on Earth — according to NOAA, it can grow up to two feet per day under ideal conditions.

Visit William's Natural Foods at 12249 San Pablo Ave, Richmond, CA — open Monday through Friday 9 AM to 7 PM, Saturday 9 AM to 6 PM, and Sunday 10 AM to 5 PM. Our staff are happy to help you find kelp in the bulk section and suggest ways to use it.

This guide is for general information only and is not medical advice. Talk to your doctor or a qualified health professional about any health questions.