All double-door refrigerators use innovative technology and are frost-free. So fruits and green vegetables stay fresh for 10 or even 15 days. Which is considerably longer than single door refrigerators. The vegetable compartment is designed in such a way that the moisture inside it is always balanced, preventing moisture from evaporating. So, a double-door refrigerator is a way to go because they feature larger vegetable compartments and can keep veggies fresh for up to 10 or even 15 days.