This post contains affiliate links. As an Amazon Associate I earn from qualifying purchases. If you click a link and make a purchase, I may receive a small commission at no extra cost to you.
Soaking walnuts in water typically takes between 4 and 12 hours, depending on your goals and the texture you want.
If you’ve been wondering how long do you soak walnuts in water, the short answer is overnight is usually best for most people.
That said, some folks soak them for just a few hours while others go up to 24 hours for a softer bite.
In this post, we’ll break down exactly how long do you soak walnuts in water, why soaking matters, and how to get it right every single time.
Let’s dive in.
How Long Do You Soak Walnuts in Water?
The answer to how long do you soak walnuts in water comes down to a simple range: 4 to 12 hours.
Most people find that soaking walnuts in water overnight hits the sweet spot.
That’s roughly 8 hours, which gives the nuts enough time to soften without turning mushy.
If you’re short on time, soaking walnuts in water for 4 hours still works, especially if you’re going to blend them.
But if you want the full benefits, aim for at least 6 to 8 hours.
Here’s a quick breakdown so you know exactly how long to soak walnuts in water:
1. 4 Hours for a Quick Soak
Four hours is the minimum if you’re in a hurry.
At this point, the walnuts will soften slightly, and the water will start pulling out some of the tannins.
This is fine if you’re making a smoothie or a quick nut milk.
But for eating raw or baking, 4 hours might not be enough to get that ideal texture.
2. 8 Hours Overnight for Best Results
Soaking walnuts in water overnight is the gold standard.
Eight hours gives the nuts time to fully absorb water, which makes them easier to digest.
It also reduces the bitterness that some people notice in raw walnuts.
If you’re asking how long do you soak walnuts in water for the best taste and texture, overnight is your answer.
3. 12 Hours for Maximum Softness
Twelve hours is on the longer end of the recommended range.
At this point, the walnuts will be quite soft, almost like a soaked bean.
This is great if you’re blending them into sauces, dips, or spreads.
Just don’t go past 12 hours unless you’re refrigerating them, because they can start to ferment.
4. Up to 24 Hours in the Fridge
If you want to soak walnuts in water for longer than 12 hours, put them in the fridge.
Cold temperatures slow down fermentation and keep the nuts fresh.
You can soak walnuts in water for up to 24 hours this way, but honestly, 12 hours is usually plenty.
Why Soaking Walnuts in Water Matters
Soaking walnuts in water isn’t just a random step people do for fun.
There are real reasons why this simple process makes a difference.
1. It Makes Walnuts Easier to Digest
Walnuts contain phytic acid, which can interfere with how your body absorbs certain minerals.
When you soak walnuts in water, the phytic acid breaks down.
This means your body can absorb more of the good stuff, like iron, zinc, and calcium.
It also makes the nuts gentler on your stomach.
2. It Removes Bitterness
Ever bitten into a walnut and tasted something a little sharp or bitter?
That’s the tannins.
Soaking walnuts in water pulls out those tannins, leaving you with a milder, sweeter flavor.
This is why soaked walnuts taste so much better in salads and baked goods.
3. It Softens the Texture
Raw walnuts can be pretty hard.
Soaking walnuts in water softens them up, which is perfect for blending.
You can turn soaked walnuts into creamy nut milk, vegan cheese, or even a hearty pasta sauce.
If you’ve ever tried blending dry walnuts, you know how gritty the result can be.
How to Soak Walnuts in Water the Right Way
Now that you know how long do you soak walnuts in water, let’s talk about the how.
It’s not complicated, but a few small steps make a big difference.
1. Use Fresh, Filtered Water
Start with clean water.
Filtered water is best because it doesn’t have chlorine or other chemicals that can affect the taste.
Just place your walnuts in a bowl and cover them with at least two inches of water.
They’ll expand a bit, so give them room.
2. Add a Pinch of Salt
A little salt in the soaking water can help activate enzymes that break down phytic acid.
It also enhances the flavor of the walnuts.
You don’t need much, just a pinch per cup of water.
3. Keep Them Covered
Leave the bowl on the counter if you’re soaking for 4 to 8 hours.
If you’re going longer, pop it in the fridge and cover it with a lid or plate.
This keeps dust and bugs out and prevents the walnuts from absorbing weird fridge smells.
4. Rinse Thoroughly After Soaking
Once the soaking time is up, drain the water and rinse the walnuts well.
This removes any leftover tannins and phytic acid.
Then pat them dry if you’re going to eat them right away.
5. Dry Them for Storage
If you’re not eating them immediately, spread the soaked walnuts on a baking sheet.
Dry them in the oven on the lowest setting for a few hours, or use a dehydrator.
This keeps them from getting moldy and gives them a crunchier texture.
So, How Long Do You Soak Walnuts in Water?
You soak walnuts in water for 4 to 12 hours, with overnight being the sweet spot for most people.
Soaking walnuts in water makes them easier to digest, removes bitterness, and softens them for blending.
Just remember to use clean water, rinse them well afterward, and store them properly if you’re not eating them right away.
Whether you’re making nut milk or just want a healthier snack, now you know exactly how long do you soak walnuts in water.