These different types of ingredients are as follows:

1, raw meat.

2. Lettuce.

3. Cooked meat.

4. Cooked vegetables.

When cutting these dishes, we must pay attention to the separation of meat and vegetables, raw and cooked.

The reason why we should pay attention to the separation of meat and vegetables is to avoid the change of the taste of ingredients.

Meat and vegetables taste completely different.

Therefore, if we cut vegetables just after cutting meat, it will change the taste of vegetables, thus affecting the taste of vegetables.

The reason why we should pay attention to the separation of raw and cooked food is because of health problems.

Cooked vegetables or cooked meat are relatively hygienic because of the high temperature.

However, lettuce or raw meat is unsanitary.

If we cut raw lettuce before cutting vegetables and cooked meat, it will make cooked vegetables and cooked meat unsanitary and affect our health.

Therefore, when cutting vegetables, we should pay attention to the separation of meat and vegetables, raw and cooked.

In our kitchen, we'd better set up two raw and cooked chopping boards. These two chopping boards are used to cut raw lettuce and cooked vegetables respectively. ..... so as to ensure cleanliness.

In addition, when we finish cutting vegetables and meat, we should clean the chopping block in time to ensure cleanliness and hygiene.

By doing the above, we can be clean and hygienic when cooking.

At the same time, because we separate meat from vegetables, raw and cooked separately, the cut vegetables will retain their original flavor, so that the vegetables will be more fragrant and delicious.