Final answer:
The information provided does not clearly state the minimum exposure time for wrapped goods at 275°F (135°C), but standard procedures suggest that sterilization typically takes 20 minutes or more at lower temperatures. Without exact guidelines for 135°C, a definitive answer cannot be provided.
Step-by-step explanation:
The minimum exposure time for wrapped goods in a prevac steam cycle at 275°F (135°C) is not specifically provided in the given reference materials. However, the references suggest that standard autoclave operating temperatures are usually at 121°C or 132°C and typically involve an exposure time of 20 minutes or more, depending on the volume and nature of the material being sterilized. Since the question asks about a higher temperature of 135°C, one can infer that the exposure time could potentially be shorter than the standard time, yet without specific guidelines, it is unsafe to provide a definitive answer.