Short Answer 
A chemical-sanitizing machine is a dishwasher that rinses dishes at a lower temperature of 120°F, using chemical disinfectants instead of heat to sanitize effectively. The key differences with high-temperature machines include temperature use, sanitization processes, and operational safety, making chemical-sanitizing machines safer for public health.
Step 1: Understand the Machine Type
A chemical-sanitizing machine is a type of dishwasher designed to rinse dishes at a final temperature of 120°F (49°C). This is significantly lower than high-temperature dishwashers, which use temperatures above 180°F (82°C). Recognizing these temperature differences is essential for understanding how each machine operates and meets sanitation standards.
Step 2: Learn the Sanitization Method
This machine relies on a combination of chemical disinfectants and lower temperatures to effectively sanitize dishes. The process involves using a sanitizing agent, which works to eliminate bacteria and germs while operating at a safe temperature. Unlike high-temperature units, the chemical-sanitizing method ensures that dishes are sanitized without the risks associated with extreme heat.
Step 3: Identify the Key Differences
The principal differences between a chemical-sanitizing machine and a high-temperature machine are based on their sanitation methods:
- Temperature Use: High-temperature machines use very hot water; chemical-sanitizing machines use lower temperatures.
- Sanitization Process: High-temperature machines kill microbes with heat, while chemical machines rely on chemical agents.
- Operational Safety: Chemical-sanitizing machines operate at safer temperatures for public health.