Final answer:
The incorrect statement about pot distillation of rum is that at least two distillations are required to bring it to proper alcoholic strength, as the number of distillations needed varies.
Step-by-step explanation:
Understanding the process of pot distillation of rum involves recognizing that it is a method used to separate liquid mixtures based on differences in volatility. The statement that is NOT true about pot distillation of rum is the second one: "at least two distillations are required to bring rum to proper alcoholic strength". This is not necessarily true as the number of distillations required can vary depending on the desired strength and flavor profile of the rum being produced. Pot distillation is indeed a batch process involving heating a liquid mixture to vaporize the more volatile components, which then condense into a separate container. The use of a retort may enhance the separation process by allowing for successive refinement stages. It is also accurate that pot stills are often used to produce heavy rums, as they typically produce spirits with richer flavors due to less efficient separation of congeners.