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You can soak walnuts in water for about 8 to 12 hours, though some people let them sit for up to 24 hours depending on the texture they want.
If you’ve been wondering how long do you soak walnuts in water, the short answer is overnight, which usually lands right in that 8 to 12 hour sweet spot.
Soaking walnuts in water is a simple process, but the timing matters more than most people realize.
In this post, we’ll walk through exactly how long to soak walnuts in water, why soaking them helps, and a few tips so you get the best results every time.
Let’s dive in.
How Long Do You Soak Walnuts in Water?
So you soak walnuts in water for around 8 to 12 hours, and that window works well for most people.
That said, the ideal soaking time for walnuts can shift a little based on what you’re after.
Here’s a closer look at the timing.
1. Overnight Is the Gold Standard
If you soak walnuts in water overnight, you’re basically nailing the perfect timeframe.
Toss them in a bowl, cover them with water, and let them sit while you sleep.
By morning, you’ll have soft, ready-to-eat walnuts that are much easier to digest.
2. 8 to 12 Hours Works for Most Recipes
When you soak walnuts in water for 8 to 12 hours, the nuts absorb enough moisture to soften nicely without turning mushy.
This range is ideal for smoothies, baked goods, and homemade nut milk.
It’s also the timeframe most soaked walnut recipes assume you’re using.
3. Up to 24 Hours for Very Soft Walnuts
You can soak walnuts in water for up to 24 hours if you want them extra soft.
Some people prefer this longer soak for blending into creamy sauces or baby food.
Just keep them in the fridge if you go past 12 hours so they don’t spoil.
Why Soak Walnuts in Water at All?
You soak walnuts in water because it makes them easier to digest and better for absorbing nutrients.
Here’s why this simple step is worth your time.
1. It Reduces Phytic Acid
Walnuts contain phytic acid, which can block your body from absorbing certain minerals like iron and zinc.
When you soak walnuts in water, that phytic acid breaks down significantly.
That means your body gets more of the good stuff from every handful.
2. It Softens the Texture
Soaking walnuts in water softens their tough outer skin and firm interior.
This makes them way easier to chew and blend.
If you’ve ever tried blending dry walnuts, you know the struggle.
3. It Can Improve Digestion
Soaked walnuts are gentler on your stomach than raw ones.
The soaking process mimics what happens in nature when rain moistens nuts before they sprout.
This activates enzymes that make walnuts easier for your body to process.
How to Soak Walnuts in Water the Right Way
Learning how long do you soak walnuts in water is only half the battle.
The method matters too, so here’s how to do it properly.
1. Use Enough Water
Place your walnuts in a bowl and cover them with at least two inches of water.
Walnuts expand as they soak, so give them plenty of room.
Filtered water works best if you have it on hand.
Adding a pinch of salt to the water is optional, but some people say it helps with flavor.
2. Keep Them Covered
Leave the bowl on your counter if you’re soaking for 8 to 12 hours.
If you plan to soak walnuts in water for longer, pop the bowl in the fridge.
This keeps bacteria from growing while the nuts soak.
3. Rinse Well Before Using
Once the soaking time is up, drain the walnuts and give them a good rinse.
The water they soaked in will look cloudy, and that’s normal.
Just toss that water out and rinse the nuts under fresh running water.
4. Store Them Properly
Soaked walnuts will keep in the fridge for about three to four days.
Keep them in a sealed container with a little moisture so they don’t dry out.
You can also freeze soaked walnuts for up to six months if you soaked more than you need.
Common Mistakes When You Soak Walnuts in Water
Even a simple task like soaking walnuts can go sideways if you’re not careful.
Here are a few things to watch out for.
1. Soaking Too Long at Room Temperature
If you soak walnuts in water for more than 12 hours, put them in the fridge.
Leaving them out too long invites mold and bacteria.
Nobody wants funky walnuts.
2. Skipping the Rinse
Always rinse your walnuts after soaking.
The soaking water holds the phytic acid and tannins you’re trying to remove.
Skipping the rinse means you’re putting some of that right back into your body.
3. Using Hot Water
Room temperature or cool water is the way to go.
Hot water can make the walnuts mushy and mess with their healthy fats.
So, How Long Do You Soak Walnuts in Water?
You soak walnuts in water for 8 to 12 hours, or overnight, and that gives you the best texture and nutrition.
A longer soak of up to 24 hours works if you want them extra soft, as long as you refrigerate them.
Soaking walnuts in water is a small step that pays off with better digestion, softer nuts, and more nutrients your body can actually use.
Now you know exactly how long do you soak walnuts in water, so go ahead and give it a try tonight.