1. Peel the pineapple and dig out the black scars (they have already removed the skin for me when I bought it)
2. Cut the pineapple into small pieces
3. Soak the cut pieces in light salt water for half an hour
4. Rinse a few kinds of rice and soak it for 1 hour (Barley is more resistant to cooking, soaking a little longer will be better)
5. After soaking, pour the rice into the electric pressure cooker
6. Pour out the light salt water that soaks the pineapple, rinse it, and pour it into the pot
7. Add an appropriate amount of water, add rock sugar, and cook for an hour in an electric pressure cooker
8. After cooking, let it dry for a while and you can drink it
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