How to Get Feces Out of Dehydrator: Proven Sanitizing Guide

Immediate Action (first 5 minutes)

Finding animal waste inside your food prep equipment is a nightmare. I know this firsthand. Last winter, my barn cat managed to squeeze through a cracked garage window and decided the open trays of my Excalibur 3926TB were the perfect litter box. Don't panic. Don't turn the machine on. Turning on a dehydrator at its maximum 165°F setting will not kill the dangerous pathogens found in feces, and it will literally bake the biological hazards into the plastic mesh.

Grab your gloves. You need to act fast before the mess dries. If you leave animal waste sitting on a dehydrator screen for more than an hour, the moisture evaporates and binds the proteins directly to the nylon or stainless steel fibers. Unplug the unit immediately. Carry the entire machine outside or to a deep utility sink to avoid cross-contaminating your kitchen counters. Remove every single tray and set them aside on a disposable garbage bag.

Next, inspect the base unit. Look closely at the fan housing and the heating element coil. If any physical matter fell through the trays into the bottom of the base, use a pair of long tweezers to extract it. Never use your bare hands. Feces carries E. coli, Salmonella, and various parasites that can cause severe illness. Once the bulk of the mess is physically removed, you can move on to the deep chemical sanitization phase.

What You'll Need (tools/products)

You cannot clean this up with just warm water and dish soap. Dish soap removes grease, but it does not destroy the cellular walls of fecal bacteria. I've tested dozens of cleaning agents over my 10 years of restoring kitchen appliances, and you need a specific combination of enzymatic breakers and food-safe sanitizers. Here is my exact kit for this job.

Product / Tool	Estimated Price	Why You Need It
Heavy-Duty Nitrile Gloves	$12 - $15	Protects your skin from pathogens and harsh sanitizers.
Nature's Miracle Enzymatic Cleaner	$11 - $14	Breaks down the uric acid and fecal proteins at a molecular level.
Star San HB Acid Sanitizer	$18 - $22	Food-safe, no-rinse sanitizer that kills 99.9% of bacteria.
Soft-Bristle Detailing Brush	$6 - $9	Reaches into the tiny intersections of the mesh screens without tearing them.
Microfiber Cleaning Cloths	$10 (pack of 6)	Traps microscopic debris when wiping down the base unit.

I'll be honest, this takes elbow grease and a bit of an investment. This isn't the cheapest option, but buying a brand new $250 dehydrator is much worse for your wallet. Star San is a brewery-grade sanitizer that I highly recommend because it requires no rinsing, meaning you won't introduce new tap-water bacteria back onto your clean trays.

Step-by-Step Removal (4-7 steps)

Step 1: The Enzymatic Soak

Fill a large plastic tub or your bathtub with warm water. The water should be around 90°F to 100°F. Hotter water will actually cook the proteins in the feces, binding them permanently to the plastic mesh. Add two cups of Nature's Miracle enzymatic cleaner to the water. Submerge the affected trays completely. Let them soak for exactly 45 minutes. The enzymes need this time to literally eat the organic waste.

Step 2: Scrubbing the Mesh

Put on your nitrile gloves. Pull one tray out of the tub. Take your soft-bristle detailing brush and scrub the mesh in small, circular motions. Focus heavily on the corners and the edges where the plastic frame meets the screen. You must get into the tiny intersections where microscopic particles hide from plain sight. Rinse the tray with a high-pressure hose or a strong faucet stream. Repeat this for every single tray.

Step 3: Sanitizing the Base Unit

The fan housing is the trickiest part. You can't submerge it. Mix a solution of Star San according to the bottle instructions, which is usually one ounce per five gallons of water. Dampen a microfiber cloth in the solution and wring it out until it is only slightly moist. Wipe down the entire interior of the base unit. Pay special attention to the ridges where the trays slide in. Do not spray liquid directly into the fan motor or the heating coils.

Step 4: Treating the Heating Element

If you suspect any microscopic droplets reached the heating coil, you need to be careful. Unplug the machine again to be safe. Dip a cotton swab into your Star San solution. Gently dab the swab along the metal heating element. This kills surface bacteria without dripping excess liquid into the electrical components. Let the base unit sit open for 10 minutes so the acid sanitizer can do its job.

Step 5: The Final Air Dry

Do not use a towel to dry the trays. Towels can harbor their own bacteria and leave lint behind in the mesh. Stand the trays upright on a clean drying rack in a well-ventilated area. Allow them to air dry completely for at least four hours. The Star San solution will dry clear and leave a completely sanitized, food-safe surface behind.

Alternative Methods (2-3 backup methods)

Method 1: Diluted Bleach Soak (Stainless Steel Trays Only)

If you own a machine with stainless steel trays, like the Cosori Premium Stainless Steel model, you can use bleach. Mix one tablespoon of Clorox Regular Bleach per gallon of cold water. Soak the metal trays for 15 minutes. Bleach will permanently degrade and warp plastic mesh screens, so never use this on Excalibur or Nesco plastic trays. Rinse the stainless steel thoroughly with distilled water afterward to prevent rust spots.

Method 2: Sequential Vinegar and Peroxide Spray

If you cannot find Star San, this two-step chemical reaction works well for the base unit. Fill one spray bottle with white vinegar and another with 3% hydrogen peroxide. Spray the interior of the base unit with vinegar, then immediately spray it with peroxide. The resulting bubbling action lifts biological matter out of the plastic crevices. Wipe it away with a clean cloth. Never mix these two liquids in the same bottle, as they create a corrosive acid.

Method 3: The Dishwasher Sanitize Cycle

Some modern dehydrator trays are top-rack dishwasher safe. Check your manufacturer manual first. If they are safe, place them on the top rack and run a cycle using the 'Sanitize' and 'Heated Dry' options. The water in a dishwasher sanitize cycle reaches 155°F, which is hot enough to kill most common household bacteria. I don't recommend this for heavily soiled trays, as the food particles can clog your dishwasher filter.

Prevention Tips

Keeping pets and pests out of your equipment is much easier than scrubbing biological waste out of tiny plastic holes. If you have kids who track mud everywhere or pets that roam freely, you need a physical barrier. I store my dehydrator in a heavy-duty canvas appliance bag when it isn't in use. These bags cost about $20 online and zip completely shut.

If you must leave the dehydrator on the counter, use a bungee cord to secure the door. Cats and ferrets are incredibly smart and can easily hook their paws under the door latch to pull it open. For rodent prevention, never leave the dehydrator in a garage or basement without placing it inside a sealed plastic tote. Mice are attracted to the residual food smells trapped in the fan housing, and they will absolutely use the warm interior as a nesting ground.

FAQ

Can I just run the dehydrator at 165°F to kill the bacteria?

No, you absolutely cannot rely on heat alone for this. Most dehydrators max out at 165°F, which is not hot enough to instantly destroy resilient fecal pathogens like parvovirus or salmonella spores. You must use chemical sanitization to ensure the appliance is safe for human or pet food again.

Should I throw the entire dehydrator away?

You only need to throw away the plastic mesh screens if the stain and smell won't lift after an enzymatic soak. The main base unit can usually be saved with careful surface sanitizing and an ozone treatment. Replacing a set of Excalibur trays costs around $40, which is much cheaper than buying a whole new machine.

How do I get the lingering smell out of the fan housing?

Place a bowl of activated charcoal or baking soda inside the empty dehydrator and leave it closed for 48 hours. If the odor persists, rent or buy a small ozone generator and run it inside the sealed unit for two hours. Ozone neutralizes organic odor molecules at the source rather than just masking them.

Is it safe to make jerky for my family after this cleaning process?

Yes, it is completely safe once you have completed the Star San sanitization step. Star San is widely used in the commercial brewing and dairy industries to sanitize equipment that touches consumable products. As long as the trays are fully air-dried, no harmful chemical residue will transfer to your food.