How to Get Rid of Mold in Your Refrigerator

Mold in your refrigerator means the seal or drainage system has failed

Mold grows in your refrigerator when moisture collects somewhere the cold air cannot reach or when water sits long enough for spores to settle. The most common spots are the rubber door seal (which traps condensation), the drain hole at the back or bottom (which clogs with food particles), and the vegetable crisper drawers (where humidity stays high). Unlike mold on food, which you throw away, mold on the refrigerator itself signals a problem you need to fix, or it will come back within days.

The good news: you can remove it yourself with items you already have, and the process takes about an hour. The better news: once you fix what caused it, mold stops returning.

Key Takeaways

• Mold in a refrigerator almost always means the drain hole is clogged or the door seal is trapping moisture, not that your fridge is dirty.
• White vinegar kills mold spores on contact and is safe to use on all refrigerator surfaces, including seals and plastic drawers.
• After cleaning, locate and clear the drain hole—usually at the back bottom or under the crisper drawers—to prevent mold from returning.
• If mold returns within a week after cleaning, the door seal is likely damaged and needs replacement, which costs between $100 and $300 depending on the model.

What you need to clean mold safely

Gather white vinegar, a soft brush or old toothbrush, clean cloths or paper towels, and a small bowl. You do not need bleach—it can damage rubber seals and plastic parts, and vinegar works just as well. If you have baking soda, keep it nearby; it absorbs odors after you finish cleaning.

Unplug the refrigerator before you start. This is not strictly necessary for surface cleaning, but it is safer and lets you work without the compressor running. If your fridge has a water dispenser or ice maker, turn off the water supply valve behind the unit first.

Step-by-step mold removal from seals and surfaces

Pour undiluted white vinegar into a small bowl. Dip your soft brush or toothbrush into the vinegar and scrub the rubber door seal thoroughly, paying attention to the grooves where mold hides. Work along the entire perimeter—top, sides, and bottom. The vinegar will smell strong, but it evaporates as it dries.

For mold on plastic crisper drawers or shelves, soak a cloth in vinegar and wipe the affected area. If mold is stubborn, let the vinegar sit for five minutes before scrubbing. Wipe everything down with a clean, damp cloth afterward to remove vinegar residue and dead mold spores. Dry the seal and drawers completely with a clean towel before reassembling.

If you find mold on the interior walls or ceiling of the fridge, spray or wipe those areas with vinegar the same way. Mold on interior surfaces usually means the drain is severely clogged and water is backing up inside the unit—this is your signal that the next step is urgent.

Finding and clearing the drain hole

The drain hole is small—about the size of a pencil—and its location varies by model. Check your refrigerator manual, or look for it in these common spots: at the very back of the fridge on the floor, under the crisper drawers, or behind the bottom front panel. Some models have the drain inside the back wall; if you cannot find an obvious hole, the manual will show you where.

Once you locate it, flush it with warm water using a turkey baster or small syringe. If water does not flow freely, the hole is clogged. Use a straightened paperclip or pipe cleaner to gently poke through the blockage, then flush again. You may see a stream of water and debris come out—that is normal and means the drain is working.

If the drain is inside the back wall and you cannot access it directly, pour warm water down the opening at the top of the drain channel (usually visible as a small slot or hole on the interior back wall). Let it run for a minute. This flushes the line without requiring you to disassemble anything.

Preventing mold from returning

After cleaning and clearing the drain, keep the door seal dry. Wipe it with a dry cloth once a week, especially if you live in a humid climate. Check the drain hole monthly by pouring a small amount of water down it—if it drains in a few seconds, you are good. If water pools, the drain is starting to clog again.

Store food in airtight containers to reduce loose moisture inside the fridge. Keep the crisper drawers from becoming too wet by not washing vegetables before storing them; pat them dry first. If condensation builds up on the inside of the fridge, it means the door is not sealing properly or the drain is backing up—both problems you have now fixed, so this should not happen.

Sprinkle a small open box of baking soda on a shelf to absorb odors left behind by mold. Replace it every three months. This is optional but helps if the mold smell lingers after cleaning.

When the door seal itself is the problem

If mold returns in the same spot on the door seal within a week, the seal is not closing properly and moisture is trapped inside it. This is not something vinegar can fix permanently. The rubber seal has failed and needs replacement.

Contact the refrigerator manufacturer with your model number (usually on a sticker inside the fridge or on the back). They can tell you the cost of a replacement seal and whether it is a job you can do yourself or need a technician for. Most seals cost between $100 and $300 and take 15 to 30 minutes to swap out if you do it yourself. Some models make it easier than others.

Until you replace the seal, keep cleaning the mold weekly and dry the seal thoroughly each time. This stops mold from spreading deeper into the rubber, but it is a temporary fix only.

Mold on food versus mold on the refrigerator

If you find mold on food itself—bread, cheese, berries—throw it away. Do not try to cut the mold off. Mold sends roots deep into soft foods, and you cannot see where they end. Hard cheeses are an exception: you can cut away the moldy part plus an inch around it and eat the rest, because the mold cannot penetrate dense cheese easily.

Mold on the refrigerator itself is different. It means your fridge has a moisture or drainage problem, not that your food is contaminated. Once you clean the mold and fix the drain, your fridge is safe to use again. The mold you removed was growing on plastic and rubber, not on the food you eat.

Frequently Asked Questions

Is mold in a refrigerator dangerous to eat around?

Mold on the fridge itself does not contaminate your food unless the mold directly touches it. Once you clean the mold and fix the drainage problem, the fridge is safe. Mold spores are in the air everywhere; the issue is when they grow visibly on surfaces, which means moisture is collecting where it should not be.

Can I use bleach to kill mold in my refrigerator?

No. Bleach damages rubber seals and can leave toxic residue on surfaces where food sits. White vinegar kills mold spores just as effectively and is safe for all refrigerator materials. Vinegar also evaporates completely, leaving no chemical smell after a few hours.

What if I clear the drain but mold comes back immediately?

If mold returns within days of cleaning and the drain is clear, the door seal is likely damaged and not closing properly. Water is leaking in or condensation is trapped inside the rubber. You will need a replacement seal, which your refrigerator manufacturer can provide. Until then, dry the seal daily to slow mold growth.

Can mold in the refrigerator make me sick?

Mold on the fridge structure itself is unlikely to make you sick unless you eat food it has directly contaminated. The bigger concern is that mold signals a moisture problem that will eventually damage the refrigerator or allow mold to spread to stored food. Cleaning it and fixing the drain stops both issues.

How often should I check for mold?

Check the door seal and drain hole once a month by running water down the drain and wiping the seal dry. If you live in a very humid climate or have had mold before, check every two weeks. Most people never see mold again after fixing the drain, but monthly checks catch problems early if they do return.