According to the practical cooling tip, what temperature must the liquid read after intense sunlight to be considered sufficiently pasteurized for chilling?

Consistently above $145^\circ\text{F}$

To introduce a layer of scientific certainty to the traditionally intuitive process of cooling sun tea, a practical verification step exists concerning the liquid's internal temperature. If the tea has been subjected to direct, intense sunlight for a minimum of three hours, one should verify the temperature of the liquid itself before refrigeration. If this reading is consistently above $145^\circ\text{F}$, it confirms that the brew successfully surpassed the high end of the danger zone, indicating sufficient pasteurization has occurred to allow for safe chilling. If the liquid is merely warm to the touch, indicating it never reached high enough temperatures, it should be discarded or quickly reheated to a rolling boil before chilling.