Pig blood tofu (blood clot) production method: 0.2-0.5% Tianxi animal plasma anticoagulant is added to the collection barrel, the plasma is introduced into the stirring type collection barrel through the infusion tank, and the machine is turned on and stirred until the collection is completed. Then the plasma is refrigerated at 4 degrees Celsius for 3-15 hours. When processing blood tofu, first filter the plasma, then add twice the room temperature water (add 0.2-0.3% Tianxi new blood tofu coagulant and 1-2% edible salt into the water beforehand, stir and dissolve evenly, take the upper clear liquid to blend the plasma), stir quickly and fully and then vacuum, then canning, sealing and steaming as soon as possible to set the shape. You can also wait until it is naturally solidified and then cut into pieces, steamed and shaped.