The temperature of crab bisque is checked and found to be out of accordance with the policy what HACCP principal is practiced but by throwing out the

The principle that is practiced is Corrective Action

Explanation:

A corrective action can be described as such an action plan set in place to correct an issue, problem, non-compliance or under performance. This particular type of action plan is basically put in place in order to reduce risk and improve performance.

Carrying out the corrective action on the crab after it has been found out to be out of accordance by the HACCP principle is mostly to reduce risk in that case.