The output is low, so it is very expensive. Many cheap crab paste ingredients list, there are crab meat and egg yolk, but there is no real crab yellow. In fact, if you think about it, you will know that the real market price of crab roe is around 300 yuan -400 yuan/kg. A bottle of 250g crab paste, plus the cost of logistics and packaging, should be able to sell for more than 100 yuan, certainly not as low as 9 packages in 9 yuan. Crab yellow is so expensive because of low yield. Even in the most fertile autumn, it takes at least four standard female crabs to produce100g of crab roe. But the yolk is different. The cost of egg yolk and duck egg yolk 10 yuan -20 yuan/kg can greatly reduce the cost.