Any good training deals with four aspects 

1. Knowledge 

Product knowledge training is a learning program that includes all the information about your goods or services that learners need to know in order to perform their work effectively.

Teach sales professionals to understand their customers' needs.

Use just-in-time training.

Provide opportunities to practice.

2. Skills: 

 In this industry you must need to be multi skilled person to survive and be the fittest.

Such skills like :

‌Interpersonal skills.

Problem-solving skills.

Teamwork.

‌Business skills.

‌Customer-service skills.

‌Detail oriented.

‌Leadership skills.

‌Organizational skills.

‌Physical stamina.

‌Problem-solving skills.

Speaking skills.

3. Attitudes:

Attitude is everything Without a right attitude the food service industry cannot function properly. A positive attitude must remain steady, in good and bad times. The attitudes needed to work in a food service are:

‌ Always act with a purpose.

‌ Stretch yourself past your limits every day.

4. Competencies:

Competencies is the ability to do something successfully or efficiently. Competency is a set of demonstrable characteristics and skills that enable, and improve the efficiency of, performance of a job.

‌Self-Management. 

‌Responsible Decision-Making.

Social Awareness.