Citrus
Citrus can be kept in the refrigerator without any harm happening to it, but you don’t have to store it there. According to several nutrition specialists, [5] citrus will not technically spoil if you leave them out since their thick skins keep them from turning bad too soon. However, feel free to put the citrus in your fridge if you prefer to eat it cold. Whether you keep it in your fridge or not depend on individual taste with this kind of fruit. After being cut open, citrus fruits are best kept in the refrigerator, much like other moist fruits.
Oil
This is the last good you want to keep in your fridge. If you have a bottle of oil in your refrigerator, remove it as soon as possible because keeping oil there will cause it to harden and lose its flavor. On the other side, heat can accelerate the oxidation process, so you’ll also want to be careful about where you store it. It is most recommended that you store oil in a cold, hidden area in your cupboard.