Cutlery, such as knives, forks, and spoons, can be kept in the refrigerator for as long as you need to, as they are not perishable items like food. There is no specific time limit for storing cutlery in the refrigerator.
However, it's worth noting that there is generally no practical reason to store cutlery in the refrigerator unless you have a specific purpose for doing so. For instance, some people might chill their cutlery in the refrigerator before serving certain cold dishes or desserts to enhance the dining experience.
If you do choose to chill your cutlery, make sure they are clean and dry before placing them in the refrigerator. This prevents any unnecessary moisture in the fridge and ensures that your cutlery stays in good condition.
Keep in mind that while cutlery can be stored in the refrigerator, it's not necessary or common practice for everyday use. Most people keep their cutlery in drawers or caddies at room temperature for easy access during mealtime.