When a story is told from the the narrator takes part in the action of the story.
third-person omniscient point of view
first-person point of view
third-person limited point of view

When  story is told from the FIRST-PERSON POINT OF VIEW, the narrator takes part in the action of the story.

A first person narrator can often be a major or minor character in a story.

not sure how to answer your question sorry

the best practice

1. keep your workspace clean

2. wash your hands

3. seperate and clean chemicals and equipment

4.   use microfiber cleaning utensils

5. clean and sanitize all work surfaces

hope this !