How Long To Soak Walnuts Before Dehydrating

You should soak walnuts for about 8 to 12 hours before dehydrating them.
 
That soak time gives the walnuts enough time to soften, release their natural tannins, and become easier to digest.
 
If you’ve been wondering how long to soak walnuts before dehydrating, the short answer is overnight, but there’s a sweet spot you don’t want to miss.
 
Soaking too briefly leaves them tough, while soaking too long can make them mushy or slightly fermented.
 
In this post, we’ll walk through exactly how long to soak walnuts before dehydrating, why soaking matters, and how to dry them properly afterward.
 
Let’s get into it.
 

How Long to Soak Walnuts Before Dehydrating

Soaking walnuts before dehydrating usually takes between 8 and 12 hours, though some people stretch it to 24 hours for a deeper soak.
 
The key is to give the walnuts enough time to absorb water without letting them sit so long that they turn slimy.
 
Here’s how the timing breaks down depending on what you’re after.
 

1. The Standard Overnight Soak

The most common answer to how long to soak walnuts before dehydrating is simple: overnight.
 
Toss your walnuts in a bowl, cover them with filtered water, and let them sit for 8 to 12 hours.
 
This window is long enough for the walnuts to plump up and for the tannins to leach out into the water.
 
It’s also convenient because you can start the soak before bed and wake up ready to dehydrate.
 

2. The 24-Hour Soak for Maximum Softening

If you want your walnuts extra soft and easier on the stomach, you can soak them for up to 24 hours.
 
This longer soak is popular among people who follow a raw food diet or who have sensitive digestion.
 
Just be sure to change the water once or twice during that period to keep things fresh.
 
After 24 hours, the walnuts will be noticeably softer, and the soaking water will look darker from all the released tannins.
 

3. Why You Shouldn’t Soak Longer Than 24 Hours

Soaking walnuts before dehydrating for more than a day is usually a bad idea.
 
After the 24-hour mark, walnuts can start to ferment, especially if your kitchen is warm.
 
They may develop a sour smell, a slimy texture, or even a bit of mold.
 
If that happens, toss them out and start over with a fresh batch.
 

Why Soaking Walnuts Before Dehydrating Matters

Knowing how long to soak walnuts before dehydrating is only half the story.
 
Understanding why you soak them in the first place helps you get better results every time.
 

1. It Removes Tannins and Bitterness

Walnut skins are loaded with tannins, which give them that slightly bitter, astringent taste.
 
Soaking walnuts before dehydrating pulls many of those tannins out into the water.
 
The result is a milder, sweeter flavor that works better in recipes and tastes better on its own.
 

2. It Makes Them Easier to Digest

Walnuts contain phytic acid, which can block your body from absorbing certain minerals like iron and zinc.
 
Soaking neutralizes much of that phytic acid, so your body can actually use the nutrients in the walnuts.
 
This is one of the biggest reasons people take the time to soak walnuts before dehydrating them.
 

3. It Improves Texture

Raw walnuts can be hard and a little chewy.
 
After soaking and dehydrating, they become lighter, crispier, and more pleasant to snack on.
 
The texture change is subtle but noticeable, especially if you eat walnuts regularly.
 

How to Soak and Dehydrate Walnuts Step by Step

Once you know how long to soak walnuts before dehydrating, the rest is easy.
 
Here’s a simple process you can follow at home.
 

1. Rinse and Soak the Walnuts

Start by rinsing your walnuts under cool running water to remove any dust or debris.
 
Place them in a glass or ceramic bowl and cover them with filtered water by at least two inches.
 
Add a pinch of sea salt if you like, which can help break down the tannins even further.
 
Let them soak for 8 to 12 hours at room temperature.
 

2. Drain and Rinse Thoroughly

After soaking walnuts before dehydrating, pour them into a colander and drain the water.
 
Give them a good rinse to wash away any remaining tannins and phytic acid.
 
Pat them dry with a clean kitchen towel or paper towels so they don’t stay wet too long.
 

3. Spread Them on Dehydrator Trays

Arrange the walnuts in a single layer on your dehydrator trays.
 
Don’t overlap them, or they’ll dry unevenly and may even start to mold.
 
Leave a little space between each walnut so air can circulate freely.
 

4. Dehydrate at the Right Temperature

Set your dehydrator to around 105°F to 115°F for the best results.
 
Dry the walnuts for 12 to 24 hours, depending on how thick they are and how humid your kitchen is.
 
They’re done when they’re completely dry and crunchy, with no soft spots in the center.
 

5. Cool and Store Properly

Let the walnuts cool completely before storing them.
 
Put them in an airtight jar or container and keep them in a cool, dark place.
 
Properly dried walnuts can last for several months, and in the fridge, they’ll keep even longer.
 

So, How Long to Soak Walnuts Before Dehydrating?

You should soak walnuts for about 8 to 12 hours before dehydrating them, though some people prefer a full 24 hours for maximum softness.
 
That soak time softens the nuts, removes bitterness, and makes them easier to digest.
 
Just don’t soak them longer than a day, and always rinse and dry them properly before dehydrating.
 
Hope this post has helped you understand exactly how long to soak walnuts before dehydrating so you can enjoy crisp, tasty, and nutritious walnuts anytime.