Evaporated milk has a long shelf life and is often used in baking and cooking because it's less likely to curdle or separate when heated. It's also a great option for those with dairy allergies or intolerances, as it's often lower in lactose than regular milk. However, it's not a perfect substitute, as it has a slightly sweet and nutty flavor that might affect the taste of your final dish.
In offee or tea, you can use evaporated milk as a direct substitute for regular milk, but you might want to add a bit more water to get the right consistency. And if you're making pancakes or waffles, you can use evaporated milk to add a rich and creamy texture, but be aware that it might make your batter a bit thicker than usual. Just remember, when using evaporated milk, a little goes a long way, so start with a small amount and adjust to taste.