The amount of food you have in your fridge plays a role in how cold your fridge is. Making sure the gaskets are clean and properly attached can go a long way in keeping your fridge temperature under control. How often you open your fridge door also affects how well it stays cold. If constantly opening the fridge is a major concern, say for example if you have hungry kids constantly looking for snacks in the fridge, a more practical solution is a fridge door alarm. Fridge temperature issues caused by worn-out gaskets, dirty coils, or faulty thermostats are easy to fix.