How to Dehydrate Eggplant. A Step-by-Step Guide!

By Eric Mitchell •  Updated: Jan 7, 2024 •  9 min read

In the world of home preservation, dehydrating eggplant is a somewhat unexplored terrain. Eggplant, while delicious and nutritious, is not the best candidate for preservation through canning.

The most effective method I’ve discovered for keeping eggplant fresh and palatable is dehydration. Let’s see how to dehydrate eggplant in just a few easy steps.

how to dehydrate eggplant with a food dehydrator

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Key Takeaways [TL;DR]

The Prepping Stage

Begin by acquiring a fresh eggplant. Remember, we will be working with sharp tools, so handle the eggplant carefully to avoid any injuries. The first step is to remove the top of the eggplant, which can be prickly. While this piece isn’t edible, it’s perfect for your compost bin.

Next, you’ll need a spray bottle filled with lemon juice. The reason behind using lemon juice is to prevent the eggplant from turning brown once it’s cut, which happens quite fast. A quick spritz on the cut surface will suffice.

Necessary Tools

To dehydrate your eggplant, there are a few items you should gather:

Slicing and Spraying the Eggplant

Next, cut your eggplant into slices. Aim for a thickness of about half to three-quarters of an inch. Apply a light spray of lemon juice to each freshly cut surface to maintain its color.

Eggplant Slices

Once the eggplant is sliced, cut the skin off each slice. You should then chop the eggplant into cubes that are roughly an inch in size. After chopping, give your eggplant cubes a quick spray and toss to ensure all sides are evenly coated in lemon juice.

The Dehydration Process

You might notice that the amount of eggplant you end up with is quite substantial, even from a single vegetable. This is a big part of why dehydration is such an effective method for food preservation. You can preserve large quantities of food without wasting anything.

The dehydration process itself takes about 20 hours. Start by drying the eggplant at around 125 degrees Fahrenheit in your food dehydrator. If the eggplant isn’t fully dried by bedtime, reduce the heat to 110 or 115 degrees Fahrenheit and let it continue drying overnight.

Storing the Dehydrated Eggplant

Once the eggplant is dried, it’s time to store it. Wearing a glove to avoid transferring oils from your skin to the food, transfer your dehydrated eggplant into jars. Seal the jars to create an airtight environment that will ensure your dehydrated eggplant remains preserved.

Dehydrated eggplant resembles dried mushrooms and can be stored for years, if necessary. The dehydration process removes moisture, leaving behind a durable and long-lasting food source.

Using Dehydrated Eggplant

Dehydrated eggplant is excellent in soups and stews. While it doesn’t have a robust flavor on its own, it’s perfect for absorbing other flavors in your dish. Try sautéing some before adding it to your sauce or pan.

As you can see, the process of preserving eggplant through dehydration is quite straightforward and provides a sustainable, long-term solution for storing your eggplant. The result is a versatile ingredient ready to enhance your meals at any time of the year.

Frequently Asked Questions (FAQs)

Q1: Do you peel eggplant before dehydrating?

Yes, it’s advised to peel the eggplant before dehydrating. The skin can be tough and may not dehydrate as well as the flesh of the eggplant.

Q2: Is eggplant good dehydrated?

Dehydrated eggplant can be an excellent addition to meals like stews, soups, or sauces. While the eggplant loses some of its flavor when dehydrated, it will absorb and enhance the flavors of the other ingredients in the dish.

Q3: How do you dehydrate eggplant with salt?

After peeling and cutting the eggplant into slices or cubes, sprinkle some salt over the pieces. The salt helps to draw out any bitterness. Rinse the salted pieces in cold water, pat them dry, and then proceed with the dehydration process.

Q4: How long to dehydrate eggplant in the oven?

The dehydration time for eggplant in an oven set to a low temperature (around 130°F to 140°F) can range from 10 to 12 hours. The exact timing will depend on the thickness of the slices or cubes.

Q5: How do you store dehydrated eggplant?

The best way to store dehydrated eggplant is in a sealed jar with all air removed. This can keep the dehydrated eggplant good for years.

Q6: Can you dehydrate eggplant without using lemon juice?

While lemon juice is used to prevent eggplant from browning, if you don’t have any available, you can dehydrate eggplant without it. However, you may notice a difference in the color of the finished product.

Eric Mitchell

Eric is the owner, author, content director and founder of He is the lead architect and the main man in matters concerning dehydrators, their accessories, guides, reviews and all the accompaniments.Whenever he is not figuring out simple solutions (hacks) involving cookery and their eventual storage, you will find him testing out the different types of dehydrators, to bring us the juicy details regarding these devices.He is a foodie enthusiast, pasionate about making jerky has a knack for healthy and tasty food and won't hesitate to share out any ideas that might be of value around this subject.

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