What forms of edible seaweed are classified as fit for human consumption?

Edible seaweed is classified as seaweeds and other algae that are fresh, chilled, frozen or dried, whether or not ground, and are fit for human consumption.

How should edible seaweed be stored to maintain quality?

Edible seaweed should be kept in a cool, dry environment; fresh or chilled seaweed requires refrigeration, while dried seaweed should be stored in airtight containers away from moisture and heat.

What are common processing steps for edible seaweed before it reaches the market?

Typical processing includes cleaning, washing, optional blanching, followed by drying or freezing, and finally grinding or cutting if a ground form is required.

Edible Seaweed

Edible seaweed consists of marine algae that are fit for human consumption and are sold fresh, chilled, frozen or dried. It is used directly as a food ingredient in cuisines worldwide.

Prices, specifications and international trade for edible seaweed under HS 121221.

Edible Seaweed Price

$14,188USD/t

Published reference · Jul 1, 2026

Edible Seaweed Historical Unit Values

Edible seaweed is quoted in USD/t at KOR. Historical customs values may differ from the headline reference.

Explore edible seaweed prices

Edible Seaweed Exports and Imports

Loading trade map…

South Korea led reported edible seaweed exports in 2025, at $564M.

Compare edible seaweed exporting countries

Edible Seaweed Specifications and Quality

Edible seaweed grading factors include Fit for human consumption and Form (fresh, chilled, frozen, dried).

Grading Factors

Quality assessment for edible seaweed considers Fit for human consumption and Form (fresh, chilled, frozen, dried).

Fit for human consumption
Products must be suitable for direct consumption by humans, as defined in HS subheading 1212.21.00.00.
Form (fresh, chilled, frozen, dried)
Edible seaweed may be presented in fresh, chilled, frozen, or dried states, all covered under heading 1212.

Edible Seaweed Facts and HS Code

Edible seaweed belongs to ingredients and additives within produce, nuts, spices and food ingredients. Its customs classification covers HS 121221.

Edible Seaweed HS Code

Product type	Raw
Form	Fresh
Position in the chain	Primary
Category	Ingredients and additives — Produce, nuts, spices and food ingredients
HS codes	121221
Quoted in	USD/t
Reference location	KOR

Production & Handling

Processing steps for edible seaweed include Harvesting, Cleaning, Drying.

Production and Storage

Perishability	High
Processing steps	Harvesting Cleaning Drying Grinding (optional)

Uses & Risks

Edible seaweed is used in Culinary applications, Food additives, and Nutritional supplements.

End Uses

Culinary applications
Used directly in dishes such as sushi, soups, and salads
Food additives
Incorporated as flavoring, thickening or gelling agents in processed foods
Nutritional supplements
Processed into powders or extracts for health‑food products

Edible Seaweed Questions

What forms of edible seaweed are classified as fit for human consumption?: Edible seaweed is classified as seaweeds and other algae that are fresh, chilled, frozen or dried, whether or not ground, and are fit for human consumption.
How should edible seaweed be stored to maintain quality?: Edible seaweed should be kept in a cool, dry environment; fresh or chilled seaweed requires refrigeration, while dried seaweed should be stored in airtight containers away from moisture and heat.
What are common processing steps for edible seaweed before it reaches the market?: Typical processing includes cleaning, washing, optional blanching, followed by drying or freezing, and finally grinding or cutting if a ground form is required.