How to clean kelp
Kelp can not be soaked for a long time, although the consumption of kelp should be rinsed with water before, but the time should not be too long, generally speaking, soak for about 6 hours can be, soaking time is too long nutrients in the kelp, will be dissolved in the water, the nutritional value will be reduced.
Dry kelp soaking method
If you use dry kelp, you should rinse the surface of the kelp, and then put it into the steamer for 30 minutes, and then put it into the water to soak overnight before using it for cooking. Don't soak the kelp directly, otherwise it will have a hard texture no matter how it is stewed, boiled or stir-fried.
When cooking with kelp, add some vinegar to make the flavor better.
Dried kelp surface has a layer of white frost, that is the plant alkali weathering formed by a substance called mannitol, not only harmless, there is a detoxification effect. Don't mistake that layer of white frost for the precipitation of salt, or the phenomenon of mold and mildew.
The surface of the kelp has a layer of mucus, do not need to over-wash, then, many nutrients are lost Oh.
Expanded
1, do not drink tea immediately after eating kelp (tea contains tannins), and do not immediately eat sour fruits (sour fruits contain phytic acid). Because kelp is rich in iron, the above two foods will hinder the absorption of iron in the body.
2, patients suffering from hyperthyroidism should not eat kelp, because kelp is rich in iodine, will aggravate the condition.
3, pregnant women and lactating mothers do not eat more kelp. This is because the iodine in kelp can enter the fetus and baby with blood circulation, causing thyroid dysfunction. Pregnant women only need to ensure that they eat 1-2 times a week kelp, can meet the needs of iodine during pregnancy.
However, kelp is also high in arsenic, amounting to 35-50 mg/kg, which is caused by seawater pollution. Arsenic and arsenic compounds are toxic, the most toxic is trivalent arsenic (such as arsenic), pentavalent arsenic toxicity is small, but in the body can still be converted to trivalent arsenic.
The World Health Organization stipulates that the human body's daily permissible intake of arsenic is 0.05 mg/kg. However, the arsenic content of dried seaweed has greatly exceeded these standards.
Can be based on the characteristics of arsenic can be dissolved in water, the edible kelp with enough water to soak for 24 hours, soak the process of water change to be diligent, 24 hours after the water out of the sun-dried storage standby, you can ensure the safety of edible kelp, in order to prevent arsenic poisoning.) Kelp function of soft nuts, dispersal of knots, stasis, but also abortion.
4. Kelp can not be soaked for a long time, although the consumption of kelp before the application of water rinsing, but the time should not be too long, generally speaking, soak 6 hours or so can be, soaking time is too long nutrients in the kelp, it will be dissolved in the water, the nutritional value will be reduced.
5. Special people should eat kelp, because kelp is rich in iodine, patients with hyperthyroidism do not eat kelp, will aggravate the condition; pregnant women and lactating mothers do not eat more kelp.
6. Coastal areas of high iodine to minimize the consumption of kelp, which can prevent the occurrence of iodine overdose disease, in addition to excessive consumption of kelp, may lead to thyroid cancer.
References
Dried kelp - Baidu encyclopedia
Kelp - Baidu encyclopedia