Final answer:
Unused cooked sausage should be discarded at the end of its holding time.
Step-by-step explanation:
According to food safety guidelines, unused cooked sausage should be discarded at the end of its holding time, rather than stored for later use or reheated for another meal. Perishable leftovers should be refrigerated as soon as possible to prevent bacterial growth.
When it comes to food safety, perishable foods that have been left at a temperature between 4 and 60 degrees C (40 and 140 degrees F) for more than two hours should generally be thrown out to avoid the risk of foodborne illnesses.