Why does cookie dough spoil when they are not refriggerated?

Cookie dough spoils when left unrefrigerated because of the ingredients it contains, particularly eggs and flour. Here's why:

* Eggs: Raw eggs are a breeding ground for harmful bacteria like Salmonella. These bacteria thrive at room temperature and can multiply rapidly, making the dough unsafe to eat.

* Flour: While flour itself is not a major source of bacteria, it can contain spores that can germinate at room temperature. These spores can produce toxins that cause food poisoning.

* Sugar and Moisture: These ingredients create an ideal environment for bacteria to grow and multiply.

The Refrigeration Solution

Refrigerating cookie dough slows down the growth of bacteria and prevents them from multiplying to dangerous levels.

Important Note: It's crucial to never eat raw cookie dough even if it has been refrigerated. While chilling helps control bacteria growth, it does not eliminate it completely. The risks of food poisoning from raw eggs and flour remain.

Key Takeaway: Always refrigerate cookie dough and ensure it's cooked thoroughly before eating.