First of all, the market above the duck blood and pig's blood is very similar, but the production of duck blood is much lower than pig blood, the key is the nutritional value of duck blood to be much higher than pig blood, so a lot of hot pot restaurant's duck blood in fact are used to replace the pig's blood, the practice is also quite simple, basically is to use the pig's blood injected into a large amount of water, although the injection of pig's blood was diluted a lot of water to give a person the feeling as if it is duck blood, but a closer look there is still a big difference, is this so-called duck blood color is much lighter. But look closely there is still a big difference, is such a so-called duck blood color to be much lighter! It doesn't look red and shiny!

Some of the black-hearted vendors in order to profit-driven, in order to make the pig blood and duck blood color close to the pig blood will be consumed in such a large number of pigments to make the color becomes very attractive, if the use of edible pigments that are okay, for fear of the kind of low-cost industrial pigments that would cause great harm to the body! But this watered-down pig blood has a very obvious characteristic, is not easy to store, easy to rot, so many people add preservatives to extend the shelf life, or into the refrigerator for a long time!

There are even more alarming businesses that end up using a chemical called an expanding agent in order to increase the yield of pig's blood. So add the expansion agent pig blood will become very bright red, almost exactly the same as the real duck blood, is not a professional is very difficult to distinguish, and this kind of pig blood to join the expansion agent, make the selling price is very low, basically the market with 2 yuan can buy a big box of such fake duck blood!

So in fact, some of the very cheap duck blood, can not be real duck blood, but very cheap pig blood. So how do you recognize real duck blood? You can in from the following four points to identify. First, look at the color, real duck blood color deep red, fake duck blood color red a little abnormal. Second smell, the real duck blood with a trace of bloody flavor, but fake duck blood is what taste is not!

Three pinch feel, real duck blood is elastic, pinch it will show a strip of flotsam, fake duck blood a pinch crumbled into slag, and get in the hands of a little bit not smooth, and even in the fingers there is still a color dyed red. Four taste taste, real duck blood after cutting will have a lot of small pores, the longer the cooking time to eat up the flavor of the more delicate and tender, fake duck blood after cutting will show a large pores or no pores, eat up very chewy, and very difficult to cook!

So eat duck blood must be carefully observed, do not eat their own fake duck blood still think it is true, in addition, the supermarket there is the kind of boxed duck blood for sale. We can look at the ingredient list. If the first ingredient list is fresh duck blood, then water, salt, for such duck blood we can start to buy. Basically the order of the ingredient list is based on what is added to the ingredients. This is true for many foods and drinks, so you may want to take a closer look when you have time to understand