1. If you want to remove the toxins inside the pig liver, you need to rinse the pig liver under running water, and grab it with your hands every few minutes to pull out the blood in the pig liver. Repeat this action until the pork liver changes color.

2. Soak the pig liver in salt water for thirty minutes to drain the toxins from the pig liver. You can also choose to wash the pig liver under running water for ten minutes, add white vinegar, stir evenly, and soak for half an hour. Repeat this action until the blood in the pig liver is cleansed.

3. You can also blanch the washed pork liver in boiling water for twenty seconds. This is also a good method.

4. When making pork liver, it needs to be heated until it is fully cooked and turns brown. Do not cook it half-cooked just because you want a crispy taste. This is not good for your health.

5. In daily life, you must choose fresh and healthy pork liver, which will taste better. Generally speaking, fresh pork liver is purple-red in color, rich in luster, and has the same overall color. It can recover quickly after being gently pressed with your hands, and it also has a certain degree of elasticity.

6. Stale pig liver is dull in color and lacks luster, and its surface looks very dry and rough. If you encounter such pig liver, it is not recommended to buy it.