Getting the most out of your Excalibur
An Excalibur dehydrator is a countertop appliance designed to remove moisture from fruits, vegetables, herbs, meats, and other foods using controlled heat and airflow. Unlike canning or freezing, dehydration preserves food by reducing water activity below the threshold where bacteria, mold, and yeast can thrive—typically to under 0.6 water activity levels.
Excalibur has been a leading dehydrator brand since the 1970s and 1980s, evolving from basic vertical dryers to the horizontal airflow models that the company is known for today. By the 1990s, Excalibur had established itself as a trusted name among home preservers and professionals alike, with units manufactured in the U.S. and, after 2011, featuring BPA-free trays to address consumer demand for non-toxic materials.
This article serves as a practical, step-by-step companion to the official book that comes with most Excalibur units—especially models shipped after 2011. That official booklet, typically formatted as a compact 5½” × 8½” guide of around 28 pages, covers everything from basic operations to pretreatment methods and troubleshooting.
The guidance here applies mainly to popular home models, including (if you’re still deciding which unit to buy, an Excalibur dehydrator review and buyer’s guide can help you compare capacities and features):
If you own one of these models, you’ll find the instructions that follow directly applicable to your machine.
When you first open your Excalibur dehydrator box, take a moment to inspect everything before assembly. Most units arrive securely packed with protective materials around the main cabinet and trays.
Here’s what you should typically find included in the box:
Component | Description |
|---|---|
Main cabinet | The housing unit containing the fan, heating element, and thermostat |
Drying trays | 4–10 trays depending on your model, made of food-grade plastic or stainless steel |
Mesh screens | Poly or stainless mesh inserts that sit on each tray |
Removable door | A lift-off front panel that seals the drying chamber |
User booklet | The official guide (approximately 5½” × 8½”) with operating instructions |
Before proceeding, locate the model number and serial label on the side or back panel of your unit. You’ll need this information for warranty registration and if you ever need to contact customer support for troubleshooting. |
What sets Excalibur apart from many competitors is its patented horizontal airflow mechanism. Rather than blowing heated air from the bottom up through stacked trays—which often results in uneven drying and requires frequent tray rotation—Excalibur positions the fan and heating element at the back of the unit.
This design allows thermostatically-controlled warm air to circulate continuously across all trays simultaneously. The result is more uniform dehydration without the need to constantly reposition trays during the drying cycle.
Depending on your model and purchase, you may also have or want to add:
Before you plug in your dehydrator for the first time, take a few minutes to review the safety instructions. The official manual includes a comprehensive 22-point safeguards list designed to protect you and your appliance.
Your Excalibur dehydrator should be plugged into a properly grounded outlet. In North America, most units operate on 110–120 volts, while international models run on 220–240 volts. Always verify the voltage requirements on your unit’s label before connecting.
Key electrical precautions:
Where you position your dehydrator matters for both safety and performance:
Before drying any food, prepare your unit with these steps:
This initial run burns off any manufacturing residues and ensures everything functions correctly before you add food.
During operation, surfaces can exceed 160°F, so exercise caution when checking on your batch. Steam escapes when you open the door, and both the interior and exterior surfaces near vents become hot. Keep children and pets away from the unit while it’s running, and always use both hands when removing trays to prevent tipping.
Different Excalibur models feature varying control systems—from simple analog dials to sophisticated digital panels—but all provide control over temperature and, in many cases, time.
Most Excalibur dehydrators offer a temperature range of approximately 95°F to 165°F (35°C to 74°C). This range accommodates everything from delicate herbs to food-safe meat preparation.
Here’s a quick reference for typical temperature settings:
Food Category | Temperature Range | Notes |
|---|---|---|
Herbs and flowers | 95–105°F (35–40°C) | Preserves essential oils and aromas |
Living/raw foods | 115–125°F (46–52°C) | Maintains enzyme activity for raw food diets |
Most fruits | 125–135°F (52–57°C) | Standard setting for apples, bananas, berries |
Vegetables | 135–145°F (57–63°C) | Ensures proper moisture removal |
Jerky and meats | 155–165°F (68–74°C) | USDA-compliant temperatures for pathogen safety |
If your model features a built-in timer—like the digital 9-tray units with LCD displays showing “START” prompts—you can program drying times and walk away. These units offer automatic shutoff and often include multi-stage programming for complex recipes.
For models without built-in timers:
Actual drying times depend on several factors:
For long-term storage results, it helps to understand the best foods to dehydrate for shelf stability before you start prepping specific ingredients.
Proper preparation is where good dehydration begins. Taking time to wash, slice, and treat your food correctly leads to better texture, color, and shelf life in the finished product.
For most fruits, follow this basic preparation process:
A simple pretreatment solution combines ascorbic acid (vitamin C powder) or lemon juice with water. This dipping step helps maintain the fruit’s natural color and can improve storage quality. The official manual provides specific ratios for various ascorbic acid concentrations.
Most vegetables benefit from blanching before dehydration. This brief heat treatment deactivates enzymes that can cause off-flavors and color changes during storage.
General blanching guidelines:
After blanching, immediately plunge vegetables into ice water to stop cooking, then pat dry before loading onto trays.
Herbs require gentler handling:
If you enjoy savory snacks, a collection of dehydrator beef jerky recipes and techniques can give you plenty of flavor ideas before you begin.
Making jerky requires careful attention to food safety:
For fruit leathers and purees:
Even loading and proper airflow are essential for uniform drying results. The horizontal airflow system works best when air can circulate freely across all tray levels.
Different foods require different tray preparations:
Follow these guidelines for optimal results:
While Excalibur’s horizontal airflow reduces the need for constant rotation compared to vertical-flow competitors, you may still benefit from occasional repositioning:
The door must be fully closed during operation. Some models may show slight gaps at the edges—this is normal and allows moisture to escape from the drying chamber.
This section provides typical temperatures and time ranges for common ingredients. These are guidelines rather than absolutes—your results may vary based on conditions in your kitchen and the specifics of your produce.
Fruit | Temperature | Time Range | Finished Texture |
|---|---|---|---|
Apples | 125–135°F | 6–12 hours | Leathery, pliable |
Bananas | 125–135°F | 8–12 hours | Crisp or chewy |
Berries (whole) | 125–135°F | 10–18 hours | Shriveled, no moisture when pressed |
Mangoes | 125–135°F | 8–14 hours | Leathery, slightly tacky |
Grapes (for raisins) | 125–135°F | 12–24 hours | Wrinkled, no squish |
Vegetable | Temperature | Time Range | Finished Texture |
|---|---|---|---|
Tomatoes | 135–145°F | 8–15 hours | Leathery to brittle |
Carrots | 135–145°F | 8–12 hours | Brittle, snaps when bent |
Onions | 135–145°F | 6–12 hours | Papery, crisp |
Bell peppers | 135–145°F | 8–14 hours | Brittle, crisp |
Mushrooms | 125–135°F | 6–10 hours | Leathery to crisp |
Dry herbs at 95–105°F until leaves crumble easily when rubbed between your fingers. Most herbs complete in 2–6 hours, though dense varieties like rosemary may take longer.
Use temperatures of 155–165°F for all meat products. Finished jerky should be:
Expect jerky to take 6–10 hours depending on thickness and marinade.
Stopping at exactly the right moment prevents both under-drying (which leads to spoilage) and over-drying (which results in poor quality and texture).
Use these simple checks to determine if your food is ready:
Never package warm dried foods. The residual heat creates condensation inside containers, which can lead to mold growth and spoilage.
Proper cooling steps:
Fruits benefit from a “conditioning” period that helps distribute any remaining moisture evenly:
If condensation appears or pieces stick together, return the food to the dehydrator for additional drying time.
Correct storage extends shelf life and preserves the flavor and nutritional value you worked to maintain during the drying process.
Choose containers based on your storage timeline:
Container Type | Best For | Notes |
|---|---|---|
Airtight glass jars | Short to medium-term storage | Easy to monitor, reusable |
Food-grade plastic containers | Medium-term storage | Lightweight, stackable |
Vacuum-sealed bags | Long-term storage | Removes air, prevents oxidation |
Mylar bags with oxygen absorbers | Extended storage (1+ years) | Best for emergency preparedness |
Always label containers with contents and date—for example, “Apple slices – Oct 2026.” |
Keep your dried foods in:
For maximum longevity, consider vacuum sealing with oxygen absorbers. Studies suggest that properly dehydrated foods can retain 95% of their nutritional value—far exceeding canning methods—when stored correctly, especially when you follow best practices on how long dehydrated food lasts and how to store it.
Food Type | Room Temperature | Refrigerated | Frozen |
|---|---|---|---|
Herbs | 6–12 months | 1–2 years | 2+ years |
Fruits | 1+ year | 1–2 years | 2+ years |
Vegetables | 6–12 months | 1–2 years | 2+ years |
Jerky | 2–4 weeks | 3–6 months | 1+ year |
Discard dried foods that show:
Light, regular cleaning keeps your dehydrator operating efficiently and prevents flavors and odors from transferring between batches, so it’s worth reviewing a dedicated guide on how to clean a food dehydrator thoroughly.
After each use:
For stubborn stuck-on food, soak trays in a solution of warm water and white vinegar for 15–30 minutes before washing.
Non-stick sheets require gentler care:
Wipe interior and exterior surfaces with a damp cloth and mild detergent. Key precautions:
Task | Frequency |
|---|---|
Wipe interior after messy batches | As needed |
Deep clean trays and screens | Every few uses |
Inspect power cord and plug | Monthly |
Check fan area for debris | Quarterly |
Clean exterior surfaces | As needed |
Important: Check your specific model’s manual before placing any components in a dishwasher. Many plastic trays and screens are hand-wash only.
Most problems with your Excalibur dehydrator are easy to solve with a few simple checks. Here’s how to address the most common issues.
Symptoms: Some pieces dry faster than others, or food on certain trays finishes before others.
Solutions:
Symptoms: Food takes significantly longer than expected to dry.
Solutions:
Symptoms: Unit powers on but produces no heat, or fan doesn’t spin.
Solutions:
If the problem persists after these checks, contact Excalibur customer support.
Symptoms: Rattling, grinding, or excessive vibration during operation.
Solutions:
Symptoms: Foods pick up smells from previous batches, or the unit has lingering odors.
Solutions:
Your Excalibur dehydrator is a versatile tool that goes far beyond basic fruit slices. With some creativity, you can produce everything from healthy snacks to pantry staples to craft projects.
Fruit Leather Blend berries, applesauce, or other fruits until smooth. Spread about ⅛ inch thick on non-stick sheets. Dry at 135°F for 6–12 hours until pliable and peels easily.
Banana Chips Slice bananas ⅛ inch thick, dip in lemon water to prevent browning, and dry at 135°F for 8–12 hours until crispy.
“Sun-Dried” Tomatoes Halve Roma tomatoes, remove seeds, and arrange cut-side up. Dry at 135°F for 8–15 hours until leathery. Store in olive oil for authentic flavor.
Beef or Turkey Jerky Marinate thin strips overnight, arrange on trays without overlapping, and dry at 160°F for 6–10 hours until firm with no moist spots.
Making your own snacks saves money and lets you control ingredients:
Build a dehydrated pantry for quick meals:
The dehydrator supports various dietary approaches:
Start with small batches when trying new recipes. Keep a simple notebook or phone note with:
This log becomes invaluable as you develop your personal drying preferences.
While core operation principles remain similar across the Excalibur line, tray count, materials, and control systems vary between models.
Model Type | Tray Count | Typical Features |
|---|---|---|
Entry-level | 4–5 trays | Analog dial, no timer |
Mid-range | 9 trays | Analog dial, optional timer |
Digital | 9–10 trays | Digital controls, programmable timer, LCD display |
Commercial | 10+ trays | Higher wattage (typically 600–800W), commercial-grade components |
Analog models use a simple dial to set temperature. Users must rely on external timers and manual monitoring.
Digital models (like the RES10 series) feature:
Before purchasing accessories, check your model specifications:
Accessory | Standard Size | Notes |
|---|---|---|
Non-stick sheets | 14” × 14” | Must match tray dimensions |
Silicone mats | Model-specific | Check product description carefully |
Mesh screens | Varies by model | Replacement screens available for all units |
Extra trays | Model-specific | Match tray style (plastic vs. stainless) |
Pro tip: Keep your model number handy when shopping for replacement parts or accessories. A quick check ensures you get the correct fit.
Protecting your investment in an Excalibur dehydrator involves proper care, understanding your warranty coverage, and developing good operational habits.
Most Excalibur models come with a multi-year limited warranty. To ensure coverage—and to get even more out of your purchase—you can also consult a broader guide to using an Excalibur dehydrator effectively alongside the tips below:
User reports suggest Excalibur units can last 20+ years with minimal maintenance and remarkably low failure rates (estimated at 1–2%). This longevity makes proper care worthwhile.
Extend your dehydrator’s lifespan with these habits:
If you’re storing your dehydrator for extended periods:
Contact manufacturer support rather than attempting self-repair if:
Opening the unit yourself may void your warranty—check your coverage terms before attempting any internal repairs.
The most successful home dehydrators develop consistent routines:
With time and practice, you’ll develop an intuitive sense for when foods are properly dried, which temperatures work best for different items, and how to load your machine for optimal results.
Dehydration is one of the oldest food preservation methods, and modern tools like the Excalibur make it more accessible than ever. Whether you’re making trail snacks for weekend hikes, preserving your garden harvest, or creating healthier alternatives to store-bought treats, your dehydrator is ready to help.
Start with a simple batch this week—maybe some apple chips or herb bundles from your garden. Keep notes on what works, adjust as you learn, and build your confidence one tray at a time. The investment in learning proper technique pays dividends in delicious, shelf-stable food for months and years to come.
