What is the proper PPM range for an iodine solution used for sanitization?

The proper PPM (parts per million) range for an iodine solution used for sanitization is indeed 12-25 PPM. This concentration effectively reduces the number of microorganisms on surfaces while being safe for food contact. Iodine is commonly used in food service settings due to its broad-spectrum antimicrobial properties, and maintaining it within this specific PPM range ensures that it is effective without being excessively strong, which could lead to potential food contamination or adverse reactions.

Higher concentrations, like those found in options with numbers above 25 PPM, might not only lead to residue issues but could also result in toxicity or negatively affect the taste and odor of food. Therefore, the ideal range promotes safety and efficacy, making it the best choice for sanitization in food environments.