7 Dehydrator Accessories for Drying Homegrown Herbs

Walking into a kitchen filled with the rich, warm aroma of freshly dried thyme and rosemary is one of the greatest rewards of a backyard herb garden. However, turning a bumper crop of lush, moisture-filled leaves into perfectly preserved pantry staples requires more than just high heat and hope. Having the right accessories on hand ensures that delicate essential oils are preserved and tiny leaves do not end up swept off the bottom of the dehydrator.

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Why Dehydrating Herbs Requires the Right Gear

Herbs are notoriously finicky to dehydrate compared to thick slices of fruit or dense root vegetables. Their high water content is locked inside delicate cell walls that hold the volatile oils responsible for flavor and aroma. Without the proper setup, these light leaves easily blow around the drying chamber, fall through wide tray grates, or lose their potency from uneven airflow.

Relying solely on the stock trays that come with a standard dehydrator often leads to frustration and wasted harvests. Small-scale growers need tools that manage the physical changes herbs undergo as they shrink to a fraction of their original size. Upgrading a basic setup with targeted accessories prevents loss, maintains flavor integrity, and streamlines the tedious prep work.

Mesh Screen – Excalibur Polyscreen Drying Sheet

Standard dehydrator trays feature wide plastic grids designed for large slices of fruit, which means drying herbs like thyme or oregano will inevitably result in half the harvest falling to the bottom of the unit. A fine mesh screen acts as a breathable barrier, keeping tiny leaves secure while allowing crucial warm air to circulate freely around the plant material.

The Excalibur Polyscreen Drying Sheet is the gold standard for this task due to its flexible, BPA-free plastic construction that resists sticking. These sheets are incredibly durable, meaning they will not warp under constant low heat, and their specific screen density maximizes airflow without letting even the smallest crumbled leaf slip through.

Before purchasing, measure the active drying area of the existing dehydrator trays. While these sheets are designed for 15-by-15-inch Excalibur models, they can be easily trimmed with heavy-duty kitchen shears to fit round or smaller rectangular machines. This makes them a versatile choice for any grower, though those only drying large bay leaves can safely skip them.

• Material: Food-grade, BPA-free plastic
• Dimensions: 14" x 14" (easily trimmed to size)
• Best for: Thyme, oregano, rosemary, and crumbled mint

Silicone Mat – Cosori Premium Nonstick Sheet

Some herb preservation methods involve pureeing leaves with a splash of water or oil to create herbal pastes, which cannot be dried on open mesh. A solid silicone mat provides a flat, leak-proof surface that holds liquids and semi-liquids in place until they dry into brittle, grindable sheets.

The Cosori Premium Nonstick Sheet stands out because of its thick, food-grade silicone construction that handles temperatures up to 250°F without leaching or degrading. The naturally non-stick surface allows dried herb sheets or sticky fruit leathers to peel away effortlessly without leaving stubborn residue behind.

Because these mats are solid, they block vertical airflow completely. They should be used sparingly on one or two trays at a time, leaving surrounding trays open to maintain proper circulation throughout the dehydrator cabinet. This accessory is perfect for growers who blend herbs into pestos or compound mixtures, but it is not meant for general leaf drying where 360-degree airflow is required.

• Material: 100% BPA-free food-grade silicone
• Care: Dishwasher safe (top rack)
• Best for: Herb pastes, purees, and celery salt mixtures

Extra Tray – Nesco Add-A-Tray Accessory Pack

Herbs must be processed quickly once harvested to preserve their peak flavor and color before wilting begins. When the garden yields a massive haul of basil or parsley, a standard four-tray dehydrator quickly becomes a bottleneck, forcing growers to leave valuable crops waiting.

The Nesco Add-A-Tray Accessory Pack solves this capacity issue by allowing stackable dehydrators to expand upward, doubling or tripling the usable drying area. These trays are molded from high-quality, light-blocking plastic that protects delicate herb pigments from degrading during the drying cycle.

Keep in mind that adding more trays increases the overall volume of air the heating element must warm. To maintain even drying times, avoid stacking trays beyond the manufacturer’s recommended limit, which is typically around 12 trays for most standard Nesco bases. This is an essential upgrade for backyard gardeners facing sudden gluts of late-summer herbs.

• Compatibility: Fits Nesco FD-61, FD-75A, and FD-77DT models
• Material: BPA-free plastic
• Package count: 2 trays per pack

Herb Stripper – Chef’n LooseLeaf Greens Stripper

Stripping tiny leaves from woody stems by hand is a tedious chore that can turn a quick afternoon task into a multi-hour ordeal. Leaving stems attached during dehydration is an option, but it wastes valuable tray space and requires extra work during the post-dry crumbling process.

The Chef’n LooseLeaf Greens Stripper streamlines this bottleneck with its simple, multi-hole design that accommodates various stem diameters. Crafted from durable, top-rack dishwasher-safe plastic, this pocket-sized tool allows users to pull stems through in one smooth motion, instantly popping the clean leaves free.

For best results, insert the stem root-end first into the smallest hole it can comfortably fit through. This tool works exceptionally well on sturdy, fresh stems like rosemary and thyme, but requires a gentler touch with delicate, soft-stemmed herbs like mint. It is a must-have for anyone processing large volumes of woody-stemmed herbs.

• Hole sizes: 8 different diameters for various stem thicknesses
• Bonus feature: Integrated shears/curved edge for trimming
• Best for: Rosemary, thyme, oregano, and tarragon

Jar Sealer – FoodSaver Wide-Mouth Jar Sealer

Even perfectly dried herbs will degrade quickly if exposed to ambient oxygen and moisture in the air. Standard screw-top lids on canning jars are not completely airtight, allowing slow oxidation to rob the stored harvest of its vibrant color and pungent aroma over time.

The FoodSaver Wide-Mouth Jar Sealer connects to a vacuum sealing machine to draw all the air out of standard Mason jars, locking in freshness. This accessory fits over the existing metal lid of a wide-mouth jar, sealing it tight without damaging the lid so it can be reused season after season.

Note that this accessory requires a companion tool to function, specifically a vacuum sealer with an accessory port and a connecting hose. It is a highly recommended investment for serious home preservers looking to store high-value culinary or medicinal herbs for a year or more.

• Compatibility: Fits all standard wide-mouth Mason jars
• Requires: Vacuum sealer machine or manual hand pump with hose
• Material: BPA-free plastic and silicone gasket

Herb Shears – Jenaluca Herb Scissors with Cover

Cutting herbs with a standard kitchen knife can bruise delicate leaves, releasing precious essential oils onto the cutting board instead of preserving them in the plant. Multi-blade shears cut cleanly and quickly, minimizing damage to the plant tissue while preparing the harvest for the dehydrator.

The Jenaluca Herb Scissors with Cover feature five parallel, culinary-grade stainless steel blades that perform the work of five individual knife strokes with a single squeeze. This design ensures uniform cuts, which is critical for achieving consistent drying times across the entire dehydrator tray.

Avoid using these shears on tough, woody stems, as this can misalign the delicate blades over time. Use the included protective cover’s comb end to quickly clear out any clinging leaves from between the blades during long prep sessions. This tool is perfect for gardeners who dehydrate large quantities of chives, parsley, or cilantro.

• Blade material: Food-grade stainless steel
• Blade count: 5 parallel blades
• Included accessory: Cleaning comb and protective cover

Silica Packet – Dry & Dry Food Safe Gel Packets

Even after a thorough drying cycle, herbs can absorb ambient moisture from the air every time the storage jar is opened. This creeping humidity can cause the leaves to soften, lose their flavor, or even develop mold during long-term storage.

Dropping a Dry & Dry Food Safe Gel Packet into each jar provides an extra layer of insurance by actively absorbing any stray moisture. These packets utilize premium, cobalt-chloride-free indicating silica gel that turns from orange to green when it has reached maximum absorption capacity.

These packets are highly reusable; once they saturate, they can be easily reactivated in a standard home oven at a low temperature. They are completely food-safe and wrapped in durable, dust-free paper that prevents any direct contact between the silica beads and the edible herbs. They are highly recommended for anyone storing herbs in humid climates.

• Packet size: 1 gram or 2 grams (ideal for pint and quart jars)
• Indicating color: Orange (dry) to Dark Green (saturated)
• Material: Food-safe Tyvek or breathable paper wrapping

How to Prep Your Herbs for the Dehydrator

Successful dehydration begins long before the machine is turned on, starting with a clean, dry harvest. Gently wash freshly cut herbs in cold water to remove soil, insects, and garden debris, taking care not to bruise the leaves. After washing, spin them dry in a salad spinner or lay them out on clean kitchen towels until all surface moisture has completely evaporated.

Sorting the harvest is the next critical step for uniform drying. Group herbs of similar thickness together, and separate thick stems from delicate leaves whenever possible. Removing damaged, yellowed, or insect-bitten leaves ensures that only the highest quality product goes into storage, preventing off-flavors from ruining the entire batch.

Setting the Right Temperature for Delicate Leaves

When it comes to dehydrating herbs, lower temperatures are always superior to fast drying times. High heat cooks the leaves, destroying the volatile oils that contain the plant’s flavor, aroma, and medicinal properties. To preserve these delicate compounds, the dehydrator should be set between 95°F and 115°F (35°C to 46°C).

In highly humid environments, it may be necessary to start the dehydrator at 115°F for the first hour to drive off surface moisture quickly, then drop it down to 95°F for the remainder of the cycle. Patience is key here; rushing the process with higher heat will leave you with brown, tasteless leaves that resemble lawn clippings more than culinary herbs.

How to Test Your Herbs for Perfect Dryness

Never test herbs for dryness while they are still warm inside the active dehydrator, as the heat makes them artificially pliable. Instead, remove a sample stem or leaf and let it cool completely to room temperature for several minutes. Once cooled, the herb should be completely brittle, shattering easily when rubbed between two fingers.

If the leaves bend or feel leathery instead of snapping clean, they require more time in the dehydrator. A reliable secondary test involves placing the cooled herbs in a sealed glass jar for 24 hours; if any condensation appears on the inside of the glass, the herbs must go back onto the drying trays immediately.

Best Practices for Storing Your Dried Harvest

The enemies of dried herbs are heat, light, air, and moisture. Store the finished harvest in airtight glass jars, preferably amber or dark-tinted glass to shield the contents from destructive ultraviolet light. Keep these jars in a cool, dark pantry or cupboard rather than on a countertop or directly above the stove where cooking heat can degrade them.

To maximize flavor retention, store the leaves whole and only crush them immediately before adding them to a recipe. Whole leaves present less surface area to the air, preserving the volatile oils inside the plant structure for up to a year or longer.

With the right accessories and a bit of patience, preserving the garden’s abundance becomes a seamless and rewarding routine. Investing in quality tools ensures that every leaf of thyme, basil, and rosemary retains its vibrant flavor long into the winter months. Now is the perfect time to prep the trays, set the temperature, and secure the harvest.