Tested: How to Get Beet Juice Out of Dehydrator Fast

By Tom Bradley · November 29, 2025

Immediate Action (First 5 Minutes)

Beet juice contains a potent pigment called betalain. It stains plastic and metal almost instantly. If you're making snacks for a road trip and a rogue slice slips, that deep crimson juice will pool at the bottom of your machine. Stop. Unplug the unit immediately. Don't wait until the cycle finishes.

Grab a clean microfiber cloth and run it under cold tap water. Wring it out until it's just damp. Blot the spilled juice gently. Never rub the stain. Rubbing pushes the betalain deeper into the microscopic pores of your dehydrator's plastic housing or mesh screens. I've ruined a perfectly good drip tray by aggressively scrubbing a fresh spill with a hot, soapy sponge. Heat actually sets the stain, making it nearly impossible to remove later. Keep the water cold for this initial wipe-down. Once you've lifted the surface liquid, you can move on to a deeper clean.

What You'll Need

I've tested dozens of cleaners on my own Excalibur 3926TB and Cosori Premium CP267-FD over the last five years. You don't need expensive industrial chemicals. You just need the right combination of mild abrasives and oxygen-based lifters. Here is my exact toolkit for tackling stubborn pink stains.

OxiClean Versatile Stain Remover: The oxygen bubbles lift pigment from mesh. ($8-$12 for a 3lb tub)
Bar Keepers Friend Soft Cleanser: Perfect for the stainless steel or hard plastic base. ($4-$6 per bottle)
OXO Good Grips Deep Clean Brush Set: The stiff bristles reach into tight mesh corners without snapping. ($14.99)
Distilled White Vinegar: Cuts through sticky residue and neutralizes odors. ($3-$5)
Cotton Swabs: Essential for detailing around the heating element. ($2)

Product	Best Used On	Price Range
OxiClean Powder	Plastic mesh screens & drip trays	$8 - $12
Bar Keepers Friend	Stainless steel exterior & solid trays	$4 - $6
White Vinegar	Heating element housing & odors	$3 - $5

Step-by-Step Removal

I'll be honest, this takes elbow grease. Beet juice is notoriously stubborn, especially once it bakes onto a warm tray. But if you follow this exact sequence, you'll save your equipment from looking like a crime scene.

Step 1: Disassemble and Cold Soak

Pull every single tray out of the dehydrator. Remove the drip tray and the mesh inserts if your model allows it. Fill your kitchen sink or a large plastic storage bin with cold water. Add exactly 1/4 cup of OxiClean powder per gallon of water. Submerge the plastic trays and mesh screens. Let them soak for 45 minutes. The oxygen ions need time to break the chemical bonds of the betalain pigment. Don't rush this step.

Step 2: Scrub the Mesh Screens

After the soak, the water will look like purple Kool-Aid. Drain it. Take your OXO Good Grips brush and scrub the mesh screens under warm running water. Use a circular motion. Apply light pressure. If you press too hard on older Excalibur screens, you'll warp the plastic grid. I usually spend about 3 minutes per tray. Rinse thoroughly until the water runs completely clear.

Step 3: Treat the Solid Trays and Drip Pan

For the solid plastic or stainless steel drip pans, OxiClean isn't always enough. Squeeze a quarter-sized drop of Bar Keepers Friend Soft Cleanser onto a damp sponge. Scrub the stained areas. The mild feldspar abrasive lifts the pink hue without scratching the surface. Let the cleanser sit for 3 minutes on severe stains. Rinse with warm water and dry with a lint-free towel.

Step 4: Detail the Heating Element

This is the scary part. If juice splattered onto the fan or heating coil housing, you must clean it carefully. Never submerge the main unit. Mix a 50/50 solution of distilled white vinegar and water in a small bowl. Dip a cotton swab into the liquid. Wring it out so it's not dripping. Gently wipe the stained plastic housing around the fan. The mild acidity of the vinegar breaks down the sticky sugar residue left behind by the beet juice. Use a dry swab immediately after to absorb the moisture.

Step 5: Final Rinse and Air Dry

Rinse all removable parts one last time with cool water. Shake off the excess moisture. Stack the trays in a well-ventilated area, but do not put them back into the main dehydrator unit while wet. Let them air dry completely for at least 4 hours. Trapping moisture inside the machine can lead to mold growth, which is a much bigger problem than a pink stain.

Alternative Methods

Sometimes the standard soak doesn't work. If you're dealing with a stain that's been baked on for weeks, or if you're prepping for a farmer's market and need your trays looking pristine, try these backup methods.

Method 1: Hydrogen Peroxide and Baking Soda Paste

This is my secret weapon for golden beets that leave weird yellow-orange rings. Mix 3 tablespoons of baking soda with enough 3% hydrogen peroxide to form a thick paste. Spread the paste directly onto the stubborn stains. Let it sit for 20 minutes. The peroxide acts as a mild, food-safe bleach. Scrub with a soft toothbrush and rinse. This isn't the cheapest option, but it works miracles on heavily discolored plastic.

Method 2: Denture Cleaning Tablets

If you have a small countertop dehydrator with tiny, awkwardly shaped trays, soaking them in a sink is a pain. Drop the trays into a large Ziploc bag. Fill it with enough warm water to cover the plastic. Toss in 4 Polident denture cleaning tablets. Seal the bag and let it fizz for 30 minutes. The effervescent action forces bubbles into the tiny crevices of the mesh, lifting the beet pigment effortlessly.

Method 3: Sun Bleaching (UV Treatment)

Betalain is highly sensitive to ultraviolet light. If your trays are still slightly pink after a thorough washing, don't panic. Place the clean, wet trays outside in direct sunlight for an afternoon. I've tested this on my own patio. After about 4 hours of peak UV exposure, the sun literally bleaches the remaining pink tint right out of the plastic. It's completely free and requires zero scrubbing.

Prevention Tips

Cleaning is tedious. Preventing the stain in the first place is much easier. When you're making a massive batch of crimson beet chips for your kid's entire soccer team, a rogue drop of juice escaping the bottom tray is practically inevitable. Here is how I keep my machine clean during heavy prep days.

Use Silicone Mats: Buy custom-fit silicone liners for your specific model. They catch all the dripping juice and are incredibly easy to peel off and wash in the sink. Cosori makes excellent official liners for their 6-tray models.
Par-Freeze the Beets: Slice your beets to exactly 1/8 inch thickness. Lay them on a baking sheet and freeze them for 45 minutes before dehydrating. The cold firms up the cellular structure, drastically reducing the amount of juice that weeps out during the first hour of drying.
Don't Overlap Slices: It's tempting to pack the trays tightly to save time. Don't do it. Overlapping slices create a dam that traps juice, which eventually overflows and drips onto the trays below. Leave at least 1/4 inch of space between every single slice.
Rotate Trays Early: Check your dehydrator after the first 2 hours. If you see juice pooling, wipe it up immediately with a paper towel before the heating element bakes it into a hardened, sticky crust.

FAQ

Will beet juice permanently ruin my plastic dehydrator trays?

No, the plastic is not permanently ruined, but it might stay slightly tinted if you ignore the spill for months. The structural integrity of the BPA-free plastic remains completely intact even when stained. As long as you clean the trays thoroughly to remove bacterial food sources, a faint pink shadow is purely a cosmetic issue.

Can I just put my stained dehydrator trays in the dishwasher?

You can, but the high heat of the dishwasher's drying cycle will actually bake the beet stain into the plastic permanently. I always recommend hand-washing stained trays with an oxygen cleaner first. Once the stain is completely gone, you can use the dishwasher for routine sanitization on the top rack.

Why did my dehydrator still smell like earthy beets after cleaning?

Beets contain geosmin, an organic compound that produces a strong dirt-like odor that clings to warm plastic. If the smell lingers, wipe down the interior housing with a cloth dampened in pure lemon juice. The citric acid neutralizes the geosmin molecules much faster than standard dish soap.

Is it safe to use chlorine bleach on the mesh screens to remove the pink color?

I strongly advise against using chlorine bleach on any part of your dehydrator. The porous nature of the plastic mesh will absorb the harsh chemical, which can then off-gas onto your food during the next drying cycle. Stick to food-safe oxygen cleaners like OxiClean or hydrogen peroxide for stain removal.