Dear Dulse Lover, Maine Coast Dulse Flakes provide the same outstanding nutrition and good taste as our whole leaf dulse, and at less cost per ounce. They are milled from Dulse which grows in well-protected coastal passages, is easier to harvest, and gives higher yields. However, we cannot guarantee the hand-harvested Dulse used for these flakes is free from pieces of shells or pebbles. Maine Coast Dulse is sustainably harvested, low-temp sun-dried, and chopped into flakes meeting all OCIA Organic Standards, an international certifier. We also voluntarily test for chemical, heavy metal, petroleum, radioactivity, and micro-biological contaminants. Ready to use, no soaking, rinsing, cutting, or cooking required!