Preserved egg coffee is an unpopular food combination with a special taste, which may not be liked by everyone. For other unreasonable food combinations, here are some examples:

1, banana pizza: This is a combination of Italian pizza and fruit banana, which tastes very strange.

2. Cheese ice cream with barbecue: In some countries, cheese ice cream with barbecue has become a traditional food.

3, chocolate with salted potato chips: mixing chocolate and potato chips together, the taste is very strange, not everyone likes it.

4. Bacon ice cream: This is a combination of bacon and sweet ice cream, which tastes quite special.

5. Black pepper strawberry: Mixing fresh and sweet strawberries with spicy black pepper can create a peculiar taste.

6. Ham ice cream: This is a kind of food that mixes salty ham with sweet ice cream.

It should be noted that not everyone will like these food combinations, because the taste is special, so if you want to try these food combinations, you'd better try them carefully first to ensure your health and safety.