Can barley and black rice be added to the three bean soup?

Yes.

Incompatible food combinations:

1. Eggs should be avoided with saccharin - they may lead to poisoning and death if eaten together.

2. Tofu should not be eaten with honey - it will cause deafness when eaten together.

3. Avoid eating kelp and pig blood - constipation when eaten together.

4. Avoid potatoes and bananas - eating them together will cause freckles.

5. Beef should not be eaten with brown sugar - it will bloat you to death.

6. Avoid dog meat and eel - if you eat the same, you will die.

7. Avoid field snails with mutton - eating the same food will lead to bloating.

8. Avoid eating celery and rabbit meat - eating the same can cause hair loss.

9. Tomatoes and mung beans should be avoided - eating them together will damage your vitality.

10. Avoid eating crabs and persimmons - they will cause diarrhea when eaten together.

11. Avoid goose meat and duck pears - eating the same food will damage the kidneys.

12. Avoid onions and honey - eating them together will hurt your eyes.

13. Snakeheaded fish should not be eaten with eggplant - stomachache if eaten together.

14. Soft-shelled turtles should avoid amaranth - poisoning by eating the same food.

15. Preserved eggs should not be eaten with brown sugar - eating them together will cause vomiting.

16. Avoid radish and ginseng - eating the same food can accumulate food and stagnate Qi.

17. Liquor accumulates persimmons - eating the same food makes you feel depressed.