Kelp
Also known as：Kombu
Laminaria japonica
- Origin
- Rongcheng, Shandong; Dalian
- Season
- Jun–Aug
- Appearance
- A large brown alga with long ribbon-like fronds; dried product is deep brown-green, often with white mannitol crystals on the surface.
Content compiled by the Xian Mancang team
Introduction
品种介绍Kelp is China's highest-volume farmed seaweed; Rongcheng (Shandong) and Dalian are traditional main origins. Rich in iodine, it is a key dietary iodine source for inland regions; 'kombu' is its traditional dual-use (food and medicine) name.
Kelp works fresh or dried with a rich variety of processed forms — the bulk commodity of budget seaweeds.
Holding Environment
暂养环境Xian Mancang holding advisor: temperature, salinity, water quality and density references per species — feel free to exchange holding experience.
Circulates mainly dried, plus salted forms. Fresh kelp is washed in fresh water after harvest and processed by light-drying (sun), machine-drying or salting.
Storage: dry, away from light and moisture; dried product must be protected from mold; salted product keeps at 0–4°C refrigerated. Parameters above are reference values — adjust to harvest season and process.
Economic Value
经济价值A mature industry chain covering kelp knots, shreds, slices and kombu sheets with rising value-add. Low price, huge volume — the foundational category of dried-seafood channels.
Scale farming and processing bases in Rongcheng and Dalian keep supply stable; exports to Japan and Korea hold a meaningful share.
Culinary & Commercial Use
烹饪与商业用途Home: kelp-knot ribs stew, dressed kelp shreds, kelp tofu soup — universal on coastal and inland tables.
Japanese cuisine uses kombu for dashi broth. Note kelp's high iodine content — people with thyroid conditions (e.g., hyperthyroidism) should follow medical advice on intake.
Buying Guide
选购指南Dried kelp: wide thick fronds, deep green color; the white frost (mannitol crystals) is normal; no mold or off-odor. Salted: vivid green, crisp, no slime or odd smell.
Market Reference
规格行情Reference price: light-dried 5–15 CNY/jin; salted knots/shreds 3–8 CNY/jin; kombu slices 10–25 CNY/jin. Large output keeps prices stable long-term; lowest at the Jun–Aug harvest peak, slight autumn-winter rises.
Kelp · FAQs
How do I pick the freshest Kelp?
Dried kelp: wide thick fronds, deep green color; the white frost (mannitol crystals) is normal; no mold or off-odor. Salted: vivid green, crisp, no slime or odd smell.
What are the live-holding requirements for Kelp?
Circulates mainly dried, plus salted forms. Fresh kelp is washed in fresh water after harvest and processed by light-drying (sun), machine-drying or salting.
What is the current market price of Kelp?
Reference price: light-dried 5–15 CNY/jin; salted knots/shreds 3–8 CNY/jin; kombu slices 10–25 CNY/jin. Large output keeps prices stable long-term; lowest at the Jun–Aug harvest peak, slight autumn-winter rises.
How do I cook Kelp? What methods work best?
Home: kelp-knot ribs stew, dressed kelp shreds, kelp tofu soup — universal on coastal and inland tables.
Kelp · For stock availability and holding consultation, contact us