Can You Freeze Dry Candy in a Dehydrator? Tips and Tricks Revealed

Ever wondered if you can freeze dry candy in a dehydrator? You’re not alone. With the rise in popularity of freeze-dried snacks, many are curious about replicating that unique texture at home without investing in expensive equipment.

In this article, I’ll dive into the science behind freeze drying and explore whether your trusty dehydrator can achieve the same results. If you’re a DIY enthusiast or just someone with a sweet tooth, stick around—this might just be the game-changer you’ve been looking for.

Key Takeaways

  • Freeze Drying vs. Dehydrating: Freeze drying preserves candy’s texture, flavor, and nutritional content through sublimation, whereas dehydrating uses heat and air circulation, often altering the candy’s characteristics.
  • Candy Selection: High-moisture candies like gummy bears, Skittles, and marshmallows work best for freeze drying. Avoid low-moisture or chocolate-encased candies.
  • Preparation: For even dehydration, cut candies into uniform sizes and pre-freeze them for at least 24 hours before placing them in the dehydrator.
  • Challenges: Dehydrators can’t replicate freeze drying, leading to potential issues like altered textures and uneven drying.
  • Storage Tips: Store dehydrated candy in airtight containers or vacuum-sealed bags to maintain texture and flavor; use desiccant packets for added preservation.

What Is Freeze Drying?

Understanding the Process

Freeze drying, also known as lyophilization, involves freezing the product, lowering pressure, then removing the ice by sublimation. Sublimation changes ice directly to vapor without passing through the liquid phase. Freeze drying candy preserves texture, flavor, and nutritional content. Commercial freeze dryers control temperature and pressure precisely to achieve this.

  1. Texture: Retains the original texture which becomes light and crispy.
  2. Flavor: Intensity of flavors due to the absence of moisture.
  3. Shelf Life: Extended shelf life as moisture, which causes spoilage, is removed.
  4. Portability: Light weight and ease of transport without compromising taste.
  5. Nutritional Value: Preserves most of the vitamins, minerals, and other nutrients.

Examining Dehydrators for Candy Processing

Key Differences Between Freeze Dryers and Dehydrators

Freeze dryers and dehydrators have distinct functions and mechanisms. Freeze dryers use low temperatures and a vacuum to remove moisture via sublimation, which preserves color, texture, and nutritional content. In contrast, dehydrators apply heat and air circulation to evaporate moisture, often altering the texture and flavor of the candy. Freeze drying involves slower processes, ensuring better quality and longer shelf life, while dehydrating is quicker but less effective for retaining original characteristics.

Can Dehydrators Achieve Freeze Drying?

Dehydrators cannot replicate freeze-drying due to their different operational methods. While dehydrators use heat and a fan, freeze drying relies on freezing and a vacuum. Attempting to freeze-dry candy in a dehydrator can result in altered textures and flavors since dehydrators aren’t designed for sublimation. If the goal is to maintain the candy’s original texture and flavor more precisely, a freeze dryer is necessary.

Step-by-Step Guide to Freeze Drying Candy

Selection of Candy Types

Choose candies based on their moisture content and structure. Gummy bears, Skittles, marshmallows, and taffy work well for freeze drying. High-moisture candies provide the best results. Avoid candy types with minimal moisture or those encased in chocolate, as they won’t freeze-dry effectively.

Preparation Before Freeze Drying

Prepare candy by cutting larger pieces into smaller, uniform sizes. This ensures even dehydration. Arrange candy pieces in a single layer on the dehydrator trays, avoiding overlap. Freeze the candy in a regular freezer for at least 24 hours before placing it in the dehydrator.

Monitoring and Storage Tips

Monitor the dehydrator regularly to ensure no overheating occurs. Check candy pieces every few hours for dryness. Once the candy feels dry and brittle, remove it. Store freeze-dried candy in airtight containers or vacuum-sealed bags to prevent moisture absorption. Proper storage extends shelf life and preserves texture and flavor.

Potential Challenges and Solutions

Common Issues with Using Dehydrators

The primary challenge in using dehydrators for freeze drying candy lies in the fundamental differences between dehydrators and freeze dryers. Dehydrators work by using heat to evaporate moisture, which can alter the candy’s texture and flavor significantly. This method doesn’t achieve the low temperatures and pressures necessary for true freeze drying, which might lead to candies becoming sticky or chewy rather than light and crisp.

Another issue is uneven drying. Dehydrators often can’t evenly distribute heat, causing some pieces to dry out faster than others. This can result in inconsistent texture and even potential spoilage. Additionally, candies with high sugar content may melt or caramelize when exposed to prolonged heat, further affecting the desired outcome.

Tips for Optimal Results

Firstly, selecting candies with lower moisture content can help in achieving better results in a dehydrator. Examples include gummy bears, Skittles, and marshmallows. They tend to react more favorably to the heat used in the dehydration process.

Secondly, cutting candies into uniform sizes ensures more consistent drying. Smaller, uniform pieces are less likely to suffer from uneven drying, helping to maintain a more uniform texture across all pieces.

Thirdly, monitoring the dehydration process closely is crucial. Frequently check the candies to prevent over-drying or melting. Adjusting the temperature settings can mitigate excess heat and preserve the candy’s intended texture.

Lastly, for storage, place the resulting dehydrated candies in airtight containers. This helps maintain their texture and flavor over extended periods. Using desiccant packets, which absorb residual moisture, can further improve storage conditions.


Freeze-drying candy in a dehydrator can be a fun experiment, but it’s important to understand the limitations. While a dehydrator won’t perfectly replicate the results of a freeze dryer, it can still produce enjoyable snacks if done carefully. By selecting the right types of candy and closely monitoring the process, you can achieve a satisfying texture and flavor. Remember, the key is to experiment and adjust based on your specific equipment and preferences. Happy dehydrating!

Freeze-drying candy in a dehydrator is a popular method for preserving sweet treats while maintaining their texture and flavor. Although traditional freeze-drying involves extremely low temperatures and vacuum pressure, some modern dehydrators can mimic these conditions to an extent. For detailed instructions on freeze-drying candy at home, visit Freeze Drying Mama. To explore different techniques and tips for using a dehydrator effectively, check out The Spruce Eats.

Frequently Asked Questions

Can I use a dehydrator to freeze-dry candy?

No, a dehydrator cannot replicate the freeze-drying process. Freeze-drying involves sublimation, which a dehydrator cannot achieve. While a dehydrator can dry out candy, it won’t maintain the same texture or nutritional content as freeze-drying.

What is the main difference between freeze-drying and dehydrating candy?

The main difference is the method of moisture removal. Freeze-drying uses sublimation at low pressure to preserve texture and nutritional content, while dehydrating uses heat, which can alter the candy’s texture and flavor.

Why does freeze-drying preserve the candy’s original characteristics better?

Freeze-drying removes moisture through sublimation, which occurs without high heat. This process preserves the candy’s original texture, flavor, and nutritional content better than dehydrating.

Are there any challenges when using a dehydrator for drying candy?

Yes, challenges include altered texture and flavor due to heat, uneven drying, and issues with candies high in sugar content. Dehydrated candy may not retain the same quality as freeze-dried candy.

What type of candies are best for dehydrating at home?

Candies with lower moisture content are best for dehydrating. Cutting candies into uniform sizes and closely monitoring the process can also help achieve better results.

How should dehydrated candies be stored to maintain texture and flavor?

Dehydrated candies should be stored in airtight containers with desiccant packets to maintain texture and flavor. Proper storage helps prevent moisture absorption, which can affect quality.

Is freeze-drying at home expensive compared to using a dehydrator?

Yes, freeze-drying at home is generally more expensive due to the cost of freeze dryers. However, it provides better preservation of texture, flavor, and nutritional content compared to dehydrating.