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A Sub-Zero refrigerator is one of the best names in refrigeration, but that doesn’t mean it’s not susceptible to the most common problem every other refrigerator is vulnerable to: user error. How many people know how crisper drawers work, anyway? But have no fear, the experts at Caesar’s are here to teach you all about the moisture settings in Sub-Zero crisper.


Keep Your Veggies Fresh: The Right Way to Adjust the Moisture Settings in Sub-Zero Crisper


Crisper drawers work by creating the right temperature and humidity to keep and preserve produce, through ventilation openings within the drawers. Not knowing the right moisture settings in Sub-Zero crisper drawers could lead to a quick spoiling of all your tasty fruits and veggies. We’ll get into the best settings for your crisper drawers, how to adjust them, and what to do about the most common problems.


Best Settings for Your Sub-Zero Crisper Drawers


The right moisture settings in a Sub-Zero crisper drawer depends on what kinds of produce are stored in it. Optimally, your leafy vegetables, the ones that wilt easily, should stay in a high humidity drawer, and fruits that are more likely to rot should be stored in a low humidity setting.


moisture settings in Sub-Zero crisper


Image: Sub-Zero, Wolf, and Cove via YouTube


How to Adjust the Moisture Settings in Your Sub-Zero Crisper


To differentiate the Sub-Zero crisper drawer humidity, you need to locate the slides on each drawer. Moving the slide lower opens a vent, allowing moisture to be vented, creating a lower humidity environment. Adjusting it higher closes the vent, creating a high humidity environment for those leafy greens to thrive in.


What to Do About Condensation in Your Sub-Zero Refrigerator Crisper


If you see condensation in Sub-Zero refrigerator crisper drawers, that means it is too humid in there. Follow the above step, and lower the slide to let the moist air escape, and wait awhile. If this does not work to clear it, you could have a high degree of humidity in the refrigerator itself. The cause of excessive moisture in refrigerator could be a variety of different problems:


  • Damaged Drawer Gasket: The small rubber seal in your crisper drawer is what allows the humidity to be changed. Inspect it for leaking, tearing, or other damage. Leaking can be cleaned, but damage requires replacement.
  • Drain Tube Problems: Your crisper drawers have a drain tube that usually drains excess humidity. Inspect it for debris, ice, or food that could block it, and remove that. Additionally, it could be frozen within the drain tube itself, so consult your owner’s manual for proper removal and cleaning.
  • Open Refrigerator: Leaving your refrigerator open not only lets out cold air but lets in humidity. Limit the time it is open.


How to Prevent Frozen Food in Sub-Zero Crisper Drawers


If you find food freezing in crisper drawer, that’s indicative of your refrigerator’s temperature either being too high or too low. If your temperature is too high, your crisper drawer fans have to work harder as the moisture increases in the drawers. This “windchill” can result in food freezing. Ensure that your refrigerator door is not left open and that your temperature is set to 34 degrees Fahrenheit.


Low temperatures are often a result of dirty refrigerator’s condenser coils. Dirty coils are very common and should be cleaned every 6 months, so they don’t hamper the refrigerator’s airflow and result in food freezing. Refer to your owner’s manual to locate where they are, and clean them with your vacuum’s brush attachment.


After these steps, if you still have problems with moisture settings in Sub-Zero crisper, it may be time to schedule professional service. Caesar’s Appliance offers the best in Sub-Zero refrigerator repair, and can provide expert advice and suggestions for other Sub-Zero refrigerator maintenance tips.