Cod believes that everyone should have eaten, this fish is not only delicious meat, nutritious, but more importantly, less thorns, so it is deeply loved by many people. But then again, while cod is recognized for being delicious and nutritious, it's also recognized that cod is expensive.
A good cod pound often costs hundreds of dollars, but ordinary carp and grass carp are only ten yuan a pound.

Some black-hearted merchants also see this and choose to use cheap fish to pretend to be cod to sell, and make huge profits from it. There is a fish that is often used by black-hearted merchants to impersonate cod, called oil fish, which is very cheap but looks like cod.
However, after people eat this kind of fish, they will suffer, and even the ass leaks oil and falls for thousands of miles...
So, are the consequences of edible oil fish really so terrible? As ordinary consumers, how do we distinguish between oil fish and cod on the market?
How serious are the consequences of edible oil fish?
Although Okawa himself has not eaten oil fish, he has seen from the Internet that many food bloggers have personally experienced the "hell food" of oil fish, and whether the experience of edible oil fish is really like the effect of the program, although this is unknown, but the overall feedback in the general comment area, the consequences of edible oil fish should be more serious...
So, why do eating oil fish have such serious consequences?
As a deep-sea fish, in order to adapt to the underwater environment of the deep sea, the oil fish has evolved a unique body structure, and its body structure accounts for 40% of the body weight. It should be known that the oil content in avocados is only 15%-30%, and it is for this reason that oil fish is also called avocado fish.
Of course, the high fat content is not the root cause of oil fish will cause oil leakage in people's buttocks, the fundamental reason is that the fat in the oil fish body belongs to wax esters, wax esters are different from the oils we usually eat, and are esters formed by long chains of higher fatty acids and high fatty alcohols. Although wax esters do not have any toxicity, our digestive system is unable to digest and absorb wax esters.
When a person eats a wax-rich oil fish, the wax ester that cannot be digested and absorbed will accumulate into the rectum little by little under the action of intestinal peristalsis, and then flow out of the anus without the sphincter restraint. Some people with strong digestive ability will even leak oil in their butts after eating oil fish for only 30 minutes.
It is precisely for this reason that in most countries and regions, oil fish is generally used for industrial purposes and is prohibited from eating, especially In Japan, a fishing country, it is regarded as a "poisonous fish" and its import and sale are directly prohibited.
Black-hearted merchants impersonate cod with oil fish
Although oil fish is banned in most countries, because of its relatively low price and similar appearance to cod, this also gives some black-hearted merchants an opportunity.
Some time ago, there was such an incident in Tianjin, a lady surnamed Liu ordered a takeaway cod steak, and the child had a stomach upset shortly after eating it, so Ms. Liu suspected that this takeaway cod steak may not be real cod, but a frightening oil fish.
However, under the investigation of the reporter later, it was learned that the cod used in the cod steak should be a relatively cheap Mingtai fish, and the Ming Tai fish is also a kind of cod, which also excludes the possibility of oil fish, and Ms. Liu's hanging heart can finally be put down.
However, in the process of this investigation, some insiders revealed that there is indeed a possibility of oil fish pretending to be cod on the market.
It is said that the appearance of oil fish is similar to that of silver cod over 8 kg, both in size and scale size, and is very similar. But it is worth mentioning that the price of silver cod in the market is very expensive, a normal size of deep-sea silver cod to sell for thousands of yuan, so some black-hearted merchants in order to make huge profits, will indeed use oil fish to impersonate silver cod to sell.
So, if that's the case, how can we discern the oil fish that acts as cod in life?
How to distinguish between oil fish and cod?
It is actually not difficult to distinguish the method of oil fish, and finally Okawa simply teaches everyone a few ways to distinguish between oil fish and cod.
First of all, from the appearance, the size of the oil fish is relatively large, they often weigh more than 10 pounds, and their scales are relatively large and very hard.
Of course, if you think it's not easy to distinguish by appearance alone, it's easier to distinguish from the quality of the meat. The flesh color of cod is snow-white, but the flesh of the fish is slightly yellow, with obvious oiliness. In addition to the difference in color, the texture of the meat is also very different, cod meat is a typical "garlic clove meat", but the oil fish meat will give people a slimy feeling, can not see the texture.
Does cheap cod have to be impersonated by oil fish?
Of course, Dachuan has also seen people on the Internet to distinguish between oil fish and cod through the price of the method, saying that the price of serious cod is about a few hundred pieces of a pound, only the oil fish impersonated cod will sell for dozens of dollars a pound, which is actually a typical pseudo-science.
A few hundred dollars a pound of cod is often the deep-sea silver cod mentioned earlier in Dachuan, and the production of this cod is very low, so the price is relatively high.
However, there are many cod on the market that are artificially farmed on a large scale, including the common Tianshan cod (freshwater cod). It is reported that a reporter has visited an aquaculture merchant in Wuxi, and learned from the mouth of the merchant that the Tianshan cod (freshwater cod) in their place only costs 13 yuan a catty.
Although the meat quality of this cod is similar to that of deep-sea silver cod, due to artificial farming, the yield is very high, which leads to its relatively low price.
Write at the end
Today's market supervision mechanism is very strict, dare to take oil fish as cod to sell black-hearted merchants, in fact, very few, so most of the cod on the market, are safe to buy.
If you are really not at ease, you can use the method that Dachuan taught you to distinguish, if you are no longer at ease, you can directly find the relevant departments to identify...