Which of the following is a recommended concentration for chlorine sanitizing solution?

The recommended concentration for chlorine sanitizing solution is between 50-100 parts per million (ppm). This range effectively eliminates harmful pathogens while being safe for use on food contact surfaces. At this concentration, chlorine is strong enough to kill bacteria and viruses without leaving harmful residues or affecting the taste and safety of foods.

Additionally, maintaining the concentration within this range ensures that the solution is effective yet not excessively strong. Higher concentrations can lead to issues such as strong odors, potential damage to surfaces, and residue that could contaminate food. Therefore, the 50-100 ppm range is established as a standard that balances efficacy and safety in food service environments.