I’ve always found that a slowly simmered soup brings a deep sense of comfort to the kitchen. Growing up, a pot of gently bubbling broth was the ultimate symbol of a nourishing home-cooked meal. This Kelp and Pork Rib Soup is a classic that balances the rich, savory notes of pork with the subtle, oceanic flavor of kelp. It’s a beautifully simple, restorative soup that warms you from the inside out.

What Is Kelp and Pork Rib Soup?

Kelp and Pork Rib Soup (海带排骨汤, Hai Dai Pai Gu Tang) is a traditional Chinese soup known for its light, clear broth and tender ingredients. In traditional Chinese food therapy, kelp is highly valued for its nutritional profile, particularly its iodine content, and is often paired with hearty meats to create a balanced, restorative dish. While restaurants might serve highly clarified versions, the homestyle version focuses on extracting deep, savory flavors through slow simmering.

If you love comforting pork rib soups, you should also try my soothingBitter Melon Pork Rib Soup, the naturally sweetCorn and Pork Rib Soup, or the earthy and richLotus Root and Pork Rib Soup.

Ingredients

Pork Ribs: 300g (10.5 oz), cut into bite-sized pieces. If you’re wondering which cut to choose at the butcher, check out my complete guide on Pork Bones: Which Bones Make the Best Soup.
Kelp (Hai Dai): 200g (7 oz). You can use kelp knots, shreds, or flat slices. Fresh or rehydrated dried kelp both work well.
Salted Pork (Xian Rou): 50g (1.7 oz), sliced. This is the secret to a deeper, more complex broth. You can use my Homemade Chinese Cured Pork Belly if you have a batch ready!
Ginger: 6 slices, peeled.
Scallions (Green Onions): 3 knots (tie whole scallions into simple knots for easy removal later).
Shaoxing Wine: 3 tbsp total (divided for blanching and the final soup base).
Salt: 1 tsp.
Oyster Sauce: 1 tbsp.
Goji Berries: A small handful, for garnishing at the end.

Prep & Mise en Place

Prepare the Kelp: If using dried kelp, soak it in cold water. Do not soak for more than 6 hours, or it may become overly mushy and lose its beneficial nutrients. Wash thoroughly to remove any grit.

Peel the Ginger: In Traditional Chinese Medicine (TCM), kelp is considered a “cold” ingredient. We strictly use peeled ginger here because the flesh of the ginger is “warm” and helps counterbalance the kelp, while the skin is considered “cold.”

Cooking Process

First Blanch (The Meat): Place the pork ribs and salted pork into a pot of cold water. Add 1 scallion knot, 2 slices of ginger, and 1 tbsp of Shaoxing wine. Bring to a boil over medium-high heat and blanch for 2 minutes. Remove the meat and rinse it clean with hot water.

First Blanch (The Meat): Place the pork ribs and salted pork into a pot of cold water. Add 1 scallion knot, 2 slices of ginger, and 1 tbsp of Shaoxing wine. Bring to a boil over medium-high heat and blanch for 2 minutes. Remove the meat and rinse it clean with hot water.

Second Blanch (The Kelp): Kelp can carry a strong, oceanic fishiness. To neutralize this, bring a fresh pot of water to a boil. Add 2 slices of ginger, 1 scallion knot, 1 tbsp of Shaoxing wine, and the kelp. Blanch for exactly 1 minute. Remove, rinse, and set aside.

“Blanching meats starting from cold water allows the proteins to slowly coagulate, gently pushing out blood and impurities to ensure a crystal-clear, clean-tasting broth.”

Second Blanch (The Kelp): Kelp can carry a strong, oceanic fishiness.

Build the Soup Base: In a large soup pot or Dutch oven, add the clean pork ribs, salted pork, the remaining scallion knot, the rest of the peeled ginger, and 1 tbsp of Shaoxing wine. Pour in enough water to fully submerge the ingredients (about 6–8 cups).

Build the Soup Base: In a large soup pot or Dutch oven, add the clean pork ribs, salted pork, the remaining scallion knot, the rest of the peeled ginger, and 1 tbsp of Shaoxing wine. Pour in enough water to fully submerge the ingredients (about 6–8 cups).

Simmer: Bring to a rolling boil over high heat, then immediately reduce the heat to medium-low. Cover and let it gently simmer for 40 to 50 minutes. The broth should be barely bubbling.

Add the Kelp: After 40–50 minutes, carefully remove and discard the scallion knot. Add the prepared kelp into the pot. Continue to simmer for another 10 minutes. (Chef’s Tip: If you prefer melt-in-your-mouth, super soft kelp, you can add it earlier in the simmering process or add a tiny splash of Chinese black vinegar to help break down the fibers).

Season and Serve: Stir in 1 tsp of salt and 1 tbsp of oyster sauce. Turn off the heat. Skim off any thick, excess fat from the surface of the soup. Sprinkle the goji berries on top right before serving.

Season and Serve: Stir in 1 tsp of salt and 1 tbsp of oyster sauce. Turn off the heat. Skim off any thick, excess fat from the surface of the soup. Sprinkle the goji berries on top right before serving.

Why This Recipe Works

Flavor Layering: Adding a small amount of salted pork introduces a naturally cured, umami depth that fresh pork ribs alone cannot achieve.
Odor Elimination: Blanching the kelp separately with ginger and wine effectively removes its muddy, fishy aroma, keeping the final soup tasting fresh and oceanic, not pungent.
Temperature Control: Simmering on medium-low ensures the pork becomes tender without causing the meat to shred apart or the broth to turn cloudy.

Common Mistakes When Making Kelp and Pork Rib Soup

Soaking the kelp for too long: Leaving dried kelp in water overnight can cause it to become slimy and lose its structural integrity. Stick to under 6 hours.
Skipping the meat blanch: If you don’t blanch and rinse the pork ribs first, the blood and marrow will create a murky, gray broth with a strong pork odor.

Frequently Asked Questions

Can I substitute the salted pork? If you don’t have Chinese salted pork or cured pork belly, you can omit it. The soup will still be delicious, though slightly milder. You could also add a slice of standard unsmoked bacon for a similar savory depth.
Who should avoid eating kelp? Because kelp is incredibly rich in iodine, individuals with hyperthyroidism should avoid it, as it can exacerbate the condition. Furthermore, pregnant and nursing women should consume it in moderation to avoid impacting the infant’s thyroid development.
Can I make it ahead? Yes! This soup tastes even better the next day as the flavors continue to meld.
How do I store the leftovers? Let the soup cool completely, then store it in an airtight container in the refrigerator for up to 3 days.

How to Serve

Serve this soup steaming hot as part of a traditional multi-course Chinese family dinner. It acts as a wonderful palate cleanser alongside richer dishes, or paired simply with steamed rice and an Easy Tomato and Egg Stir-fry for a quick, wholesome weeknight meal.

Storage & Reheat

Refrigerator: Up to 3 days in an airtight container.
Freezer: You can freeze the broth and ribs for up to 2 months. However, freezing changes the texture of the kelp, making it slightly spongy.
Reheating: Reheat gently on the stovetop over medium heat until the soup reaches a rolling boil (at least 165°F / 74°C for food safety).

Allergen Notice

Seafood/Iodine (Kelp)
Soy/Shellfish (Oyster Sauce)

Nutrition Disclaimer

Nutrition information is an estimate and provided for informational purposes only.

About the Author & Recipe Development

I’m Lin, the voice behind Woks of Love. I share authentic Chinese recipes that bring the warmth of a traditional kitchen into your home. This kelp soup is a staple in my household, rigorously tested to ensure the perfect balance of savory pork and tender kelp. Right now, alongside sharing recipes with you here, I’m pouring all of that knowledge and passion into writing my very first cookbook. I hope this recipe brings as much comfort to your dining table as it does to mine.

Authoritative References

Safe Cooking Temperatures: For guidelines on safely preparing and reheating pork, refer to the USDA’s Meat Preparation Guidelines.
Iodine Information: To understand more about iodine intake and thyroid health, consult the NIH Fact Sheet on Iodine.