Other helpful hints? To save energy, hot foods should be cooled before going into a refrigerator, and frequent opening should be avoided. When not in use, unplug the refrigerator and open its doors.
使用冰箱，除應注意清潔、衛生外，亦不宜把熱食直接放入，且宜儘量減少冰箱開門次數及時間。