Duck blood and sheep blood which is expensive: depends on each place is different. Generally speaking, sheep blood is more expensive in places that don't produce sheep, and duck blood is cheaper. Overall it's still more expensive.

Usually duck blood is cheaper because the price of duck is a little lower than the price of sheep, so the price of duck blood will be cheaper oh. In general, eat duck blood will be more, usually eat hot pot, and do fan soup when the duck blood will be used, because the taste of duck blood is not as stinky as sheep's blood, we can accept some.

Duck blood selection skills:

Pure fresh duck blood smells fishy, we can put the duck blood in the purchase of the nose above the smell, if there is no odor, the duck blood is a problem of duck blood, not pure duck blood, pure duck blood color is darker, is not blood red, if it is a bright color, then the majority of this duck blood is fake duck blood.

Pure duck blood to eat up the texture of delicate, eat in the mouth when not eating pig blood, as rough, and chewing to the end, there will be some slag inside the mouth, pure duck blood inside there is no air holes, and air holes in most of the pig blood claimed to be fake, fake duck blood tastes very tough, with the hands of the toughness of the hand stretching, so that the duck blood are fake.