Certified Cheese Professional Practice Exam

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What is the temperature for HHST Pasteurization at 0.05 seconds?

191°F
194°F
201°F
204°F

The correct answer is: 204°F

HHST (High-Temperature, Short-Time) pasteurization is a method used for heat processing liquids, notably milk and cream, to eliminate pathogenic microorganisms while maintaining the product's quality. For HHST pasteurization specifically at a duration of 0.05 seconds, the required temperature is 204°F. This temperature is effective in ensuring that the necessary thermal death of harmful microorganisms occurs in such a brief time frame. The process aims to achieve a balance between temperature and time to provide a safe product while preserving flavor, texture, and nutritional value. This specific temperature is based on established food safety guidelines and is critical to achieving the high standards set for pasteurization, especially in the dairy industry. With HHST systems commonly operating in the range of high temperatures for short durations, 204°F is consistently recognized within food safety standards as the necessary temperature for effective pasteurization at this time interval.