The fresh jellyfish just caught, immediately into the porcelain tank or canvas bag, according to the proportion of fresh jellyfish weight 0.2% to 0.6%, the preparation of alum, dissolved in water, marinated for 2 days, so that the fresh jellyfish astringent, the discharge of water, which is known as the "first alum".
Then according to the weight of the first alum jellyfish, add salt 12% to 20%, add alum 0.5% to 0.8%, and then marinate for 7 days to 10 days, further exclude water, which is called "two alum and one salt".
Finally, according to the weight of the two alum jellyfish, add salt 20% to 30%, add alum 0.2% to 6.3%, and then pickled for 10 days.
This after about three weeks, so that the moisture content of the jellyfish skin down to about 8% to 10%, in order to allow the toxins to drain with the water. It is also necessary to remove the toxins of the jellyfish with water repeatedly soaked, rinsed, until completely off the salt, alum.
Jellyfish often swim in groups on the surface of the sea, sometimes stranded on the beach by the impact of fishing, first use a long standard to pierce the umbrella body, and then use the net to capture. After catching, it is dipped in lime and alum. Then squeeze the water out of its body, wash it and salt it.
Expanded Information:
Genital glands 4, horseshoe-shaped, located in the interstices. All of them are crumpled irregular lumps, with gray-brown surface (mostly greenish-blue, dark red, yellowish-brown or sandy when fresh), pliable texture, slightly fishy smell, salty and slightly sweet taste. To a large, intact, gray-brown color is best.
Baidu Encyclopedia - Jellyfish