Do I need to wash seaweed before cooking

Seaweed usually does not need to be cleaned before boiling, but if obvious impurities or sand particles are found, they can be quickly rinsed with clean water. Seaweed has been sterilized through high-temperature dehydration during processing, and direct cooking can retain more nutrients. Bulk seaweed or unprocessed wild seaweed may contain a small amount of sea sand. In this case, it is necessary to gently rinse with cold water for about 10 seconds to avoid prolonged soaking and loss of umami substances. Most commercially available packaged seaweed is a non wash product that undergoes multiple purification processes during processing. The white powder attached to the surface of seaweed is natural mannitol, which is a beneficial nutrient. Rinsing it can actually cause waste. If seaweed is used to make soup, it can be directly shredded and boiled in water to enhance the freshness, and the high-temperature cooking process can also have a sterilizing effect. Some people who are sensitive to the fishy smell of seafood can temporarily reduce the odor by drinking water, but they may lose some water-soluble vitamins.

When purchasing bulk dried seaweed, it is necessary to observe whether there are impurities such as shell fragments. In such cases, it is recommended to rinse quickly. When rinsing, the water temperature should not exceed 30 degrees Celsius, and the water flow should be gentle to avoid damaging the crispy and tender texture of the seaweed. Processed seaweed should be cooked as soon as possible to avoid prolonged exposure to air for oxidation and deterioration. Seaweed is rich in iodine and dietary fiber, and proper processing can help promote thyroid health and intestinal peristalsis. When storing seaweed, it should be kept dry and sealed, as it is prone to mold growth when exposed to moisture. Daily consumption can be paired with high-quality protein ingredients such as tofu and eggs to enhance nutritional value, but hyperthyroidism patients should control their intake. Choosing packaging products with a food production license can better ensure hygiene and safety. For those who are allergic to seafood or have weak gastrointestinal function, it is recommended to boil seaweed until it is completely softened before consumption.