What is the meaning for phrase al mejor cocinero se la queman las frijoles?

"Even the best cook burns the beans" is a Spanish proverb that means that even the most experienced and skilled people can make mistakes. It is often used to remind people that no one is perfect, and that everyone is capable of making errors. The proverb can also be used to encourage people to learn from their mistakes and to not be afraid to try new things, even if they are not perfect.