1. After buying the pig heart, immediately "roll" it in a small amount of flour and leave it for about 1 hour, then wash it with water to remove the peculiar smell of the pig heart; 2. Cut the pig heart in half and rinse it with running water

Wash away the remaining blood clots; 3. Cut the pig heart into slices, soak it in clean water for half an hour, and add a little high-strength white wine into the clean water.

If the bleeding water is drained, change the water again and soak again.