Cooking is not an easy job, there is integrity at stake, not everyone can cook with the best results, only people who are credible and focused in their fields, can get perfect results.
Moreover, cooking according to the wishes of others, of course we must know everyone who will eat our food, if we don't do this, it will have an impact on people's taste and satisfaction with us.
Likewise with the choice of spice ingredients chosen, the best spice ingredients will produce the best cooking results and taste. If the selected spice ingredients have problems, it will affect the results and customer satisfaction.
The most important thing that a chef must pay attention to, is to choose the main ingredients that are still fresh, such as cooking shrimp, so the best shrimp should be chosen is fresh shrimp, if possible a chef must really pay attention to this directly. Because it could be that the shrimp you get is shrimp that has been given a preservative. As a result, it will affect the results of the cooking.