Proven Methods: How to Get Blood Out of Dehydrator

Immediate Action (first 5 minutes)

Blood sets fast. Heat makes it worse. If you just finished a 6-hour jerky cycle at 160°F, that dried meat juice is basically cement. When you're processing twenty pounds of venison backstrap after hunting season, the last thing you want to worry about is scrubbing dried plasma off plastic mesh. But you have to act quickly.

In my experience making jerky for 10 years, the first 5 minutes dictate whether you'll spend 15 minutes cleaning or 3 hours scrubbing. The moment you pull the trays out of your Excalibur 3926TB or Cosori Premium, take them straight to the sink. Do not let them sit on the counter while you package the finished jerky.

Run the trays under strictly cold water. Hot water will cook the remaining blood proteins, binding them permanently to the plastic or stainless steel. I've tested this on my own oven and dehydrator; heat is the enemy of blood removal. Keep the water temperature under 70°F. If the blood is still wet, a simple cold rinse will remove 80% of the mess before you even reach for a sponge.

What You'll Need (tools/products)

You can't just use regular dish soap and hope for the best. Blood requires enzymes or oxygen-based cleaners to break down the hemoglobin. This isn't the cheapest option, but buying the right tools saves your sanity. I recommend this specific lineup because I've ruined cheap brushes trying to scrape mesh screens.

Product	Best For	Price Range	Wait Time
OxiClean Versatile Stain Remover	Soaking plastic trays	$12-$15	30-60 mins
Nature's Miracle Enzymatic Cleaner	Spot treating dried drops	$10-$14	10-15 mins
OXO Good Grips Dish Brush	Scrubbing mesh without tearing	$6-$8	N/A
Dawn Powerwash Dish Spray	Degreasing meat fats	$5-$7	5 mins

You'll also need a large plastic storage bin. Your kitchen sink might not be deep enough to fully submerge 15x15 inch dehydrator trays. A standard 18-gallon Rubbermaid tote works perfectly for soaking multiple trays at once.

Step-by-Step Removal

I'll be honest, this takes elbow grease. Dehydrator mesh is notoriously annoying to clean because the blood gets trapped in hundreds of tiny square holes. Follow this exact sequence to get your machine spotless.

Step 1: Disassemble and Cold Soak

Remove all trays from the dehydrator base. Take out the mesh inserts if your model allows it (like the older Waring Pro models). Fill your plastic bin or bathtub with cold water. Add one scoop of OxiClean per gallon of water. Submerge the trays completely. Let them soak for exactly 45 minutes. The oxygen bubbles will lift the blood out of the microscopic crevices in the plastic.

Step 2: Apply Enzyme Cleaner to Stubborn Spots

After soaking, inspect the trays. If you see dark brown or black spots, that's oxidized blood. Spray Nature's Miracle directly onto those spots. Enzymatic cleaners literally eat the protein bonds. Let the spray sit for 10 minutes. Don't rush this step. The enzymes need time to break down the dried hemoglobin.

Step 3: Scrub the Mesh Carefully

Take your OXO Good Grips brush and scrub the mesh in a circular motion. Apply moderate pressure. If you press too hard on flexible plastic screens, you'll warp them, and they won't sit flat in the dehydrator next time. For stainless steel trays, you can use a stiffer nylon brush. Rinse with cold water after scrubbing.

Step 4: Tackle the Base Unit and Drip Pan

Blood often drips past the trays and hits the bottom drip pan or the heating element housing. Unplug the machine. Remove the drip pan and wash it in the sink with Dawn Powerwash. For the main base unit, never submerge it in water. Dampen a microfiber cloth with a 50/50 mix of cold water and distilled white vinegar. Wipe down the interior walls. If blood splattered onto the heating coil, use a dry cotton swab to gently flake it off once the machine is completely cool.

Step 5: Sanitize and Rinse

Once the visible blood is gone, you need to kill any lingering bacteria from the raw meat juices. Fill a spray bottle with 3% hydrogen peroxide. Mist the trays lightly. Let it sit for 3 minutes, then rinse thoroughly with warm water. The peroxide breaks down into plain water and oxygen, leaving no toxic residue behind.

Step 6: Dry Completely Before Storage

Moisture breeds mold. Stack the clean trays in a well-ventilated area. I usually point a standard box fan at them for 2 hours. If you put damp trays back into the dark, enclosed space of the dehydrator, you'll open it next month to a nasty mildew smell.

Alternative Methods

Sometimes the OxiClean method doesn't cut it, especially if the blood has been baked onto the trays for weeks. If you're dealing with a neglected machine, try these backup strategies.

Method 1: The Baking Soda Paste

Mix 3 tablespoons of baking soda with 1 tablespoon of cold water to form a thick paste. Smear this directly over crusted blood stains on the plastic mesh. Baking soda is mildly abrasive and highly alkaline, which helps dissolve organic matter. Let it dry completely for about 2 hours. Once it turns into a hard crust, scrub it off with a stiff brush. The friction pulls the blood out of the mesh holes.

Method 2: Dishwasher (For Specific Models Only)

If you own a Cosori Premium Stainless Steel dehydrator, the trays are technically dishwasher safe. Place them on the top rack. Use a heavy-duty cycle with a detergent that contains enzymes, like Cascade Platinum ActionPacs. The high heat of the dishwasher will sanitize the metal. However, never put plastic Excalibur or Nesco trays in the dishwasher. The 150°F drying cycle will warp the plastic and melt the mesh corners.

Method 3: Meat Tenderizer Trick

This sounds crazy, but it works. Unflavored meat tenderizer powder contains papain, an enzyme derived from papayas that breaks down meat proteins. Sprinkle the powder over wet blood stains. Add a few drops of cold water to activate it. Wait 15 minutes. The papain will literally digest the blood stain, making it incredibly easy to wipe away with a damp cloth.

Prevention Tips

Cleaning is necessary, but prevention is a massive time-saver. When your landlord inspects next week and you're trying to prep meals, you don't want to spend your afternoon scrubbing jerky grease.

• Use Silicone Mats: Buy 14x14 inch reusable silicone dehydrator sheets. They catch all the dripping blood and marinade. You can just toss them in the dishwasher. They cost about $15 for a pack of five and will change your life.
• Pat Meat Dry: Before placing your marinated beef or venison on the trays, pat the slices dry with paper towels. Excess surface moisture is what causes heavy dripping during the first hour of dehydration.
• Don't Overlap Slices: If meat overlaps, it creates pockets where blood and juice pool up instead of evaporating. Leave at least a half-inch of space between every single slice.
• Rotate Trays Early: If you're using a vertical stack dehydrator like the Nesco Gardenmaster, rotate the trays every 2 hours. This prevents the top trays from dripping raw juice onto the bottom trays for extended periods.

FAQ

Can I use bleach on my dehydrator trays?

I strongly advise against using bleach on plastic dehydrator trays. The porous nature of the plastic will absorb the harsh chemical smell, which will then transfer to your next batch of fruit or jerky. Stick to oxygen-based cleaners or hydrogen peroxide for safe sanitization.

Why did my blood stain turn brown and won't come off?

Blood turns brown when the iron in the hemoglobin oxidizes and binds to the plastic surface after being exposed to high heat. This essentially dyes the plastic. While the stain might be permanent, it is completely sanitized and safe to use if you've cleaned it with enzymes.

Is it safe to use the dehydrator if a little blood stain remains?

Yes, as long as you have thoroughly washed and sanitized the tray to remove all physical residue and bacteria. A faint, shadow-like discoloration in the plastic is just cosmetic damage from the heat and iron, not active biological contamination.

How do I clean the fan if blood splattered on it?

Unplug the unit and remove the back panel if your manufacturer's manual allows it. Use a cotton swab dipped in rubbing alcohol to carefully wipe the fan blades, ensuring no liquid drips into the motor housing. If the splatter is deep inside the motor, you'll need to contact the manufacturer for professional servicing.