Refrigeration is crucial for Coquito because it contains eggs, cream, and milk - all of which are perishable ingredients. If you leave Coquito at room temperature for too long, the eggs can become a breeding ground for bacteria, and the cream and milk can spoil quickly. It's like leaving your favorite yogurt out - it's just not going to end well!
Now, you might be thinking, "But I've had Coquito at room temperature for hours and it was fine!" And that's great, but food safety is all about minimizing risks. Just like how you wear a seatbelt when driving, even if you're a great driver, you still want to be safe, right? Refrigerating Coquito is like wearing that seatbelt - it's a simple precaution to take to ensure your drink stays safe and fresh.