Final answer:
To measure the temperature of milk in a soft bulk container, folding the container around the thermometer is the optimal method to obtain a temperature reading without contaminating or altering the product's packaging.
Step-by-step explanation:
To measure the temperature of milk that is packaged in a soft bulk container, the best option provided would be to d. fold the container around the thermometer.
This approach ensures that the thermometer is in direct contact with the milk without having to pour it out or compromise the packaging by poking a hole in it. Maintaining the integrity of the container is essential in preventing contamination and preserving the milk's quality.
Considering the given procedure and solution information, using an incubator with a cork stopper and thermometer is a method typically used in a controlled laboratory setting for measuring temperature changes and thermal conductivity. The provided notes demonstrate how to correctly insert a thermometer into a container for accurate temperature readings while also mentioning various types of thermometers such as alcohol, liquid crystal, and pyrometers.