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Harvesting walnuts and storing them properly comes down to timing, drying, and keeping them in the right conditions.
If you’ve been wondering how to harvest walnuts and store them so they stay fresh for months, you’re in the right place.
The good news is that harvesting walnuts and storing them isn’t complicated once you know what to look for.
In this post, we’ll walk through exactly how to harvest walnuts, how to dry them, and the best ways to store walnuts so they last.
How to Harvest Walnuts
Harvesting walnuts starts with knowing when they’re ready.
Here’s how to get it right.
1. Wait for the Hulls to Split
The clearest sign it’s time to harvest walnuts is when the green outer hull starts to split open.
This usually happens in late summer to early fall, depending on your climate.
Once you see those cracks, the nuts inside are mature and ready to come down.
2. Gather Them Quickly
When you harvest walnuts, don’t leave them sitting on the ground too long.
Moisture and pests can ruin them fast.
Shake the tree branches gently and pick up fallen nuts daily during harvest season.
3. Remove the Hulls
After you harvest walnuts, the next step is removing the hulls.
You can do this by hand with gloves or use a hulling tool.
The hulls will stain your hands, so gloves are a must when you harvest walnuts.
4. Rinse and Inspect
Once hulled, rinse the nuts and toss out any with holes, cracks, or dark spots.
A quick rinse also removes leftover hull bits that could cause mold during storage.
How to Dry Walnuts Before Storing
Drying is the most important step when you harvest walnuts and store them.
Skip it, and your walnuts will go moldy.
1. Air-Dry in a Single Layer
Spread the nuts out in a single layer on a screen or tray.
Keep them in a warm, dry, well-ventilated area for two to four weeks.
2. Test for Dryness
After a couple of weeks, crack one open to check.
The shell should feel light and the nut inside should snap when you bite it.
If it’s still rubbery, keep drying.
3. Speed Things Up with a Dehydrator
If you want to harvest walnuts and dry them faster, a food dehydrator works great.
Set it to around 95–105°F and let them dry for 12 to 24 hours.
How to Store Walnuts
Once your walnuts are fully dry, storing them is easy if you follow a few rules.
1. Keep Them in Their Shells
Shelled walnuts store longer than shelled ones.
So if you’re planning to store walnuts for months, leave the shells on.
2. Use Airtight Containers
Place them in airtight containers or zip-top bags.
Squeeze out as much air as possible before sealing.
3. Store in a Cool, Dark Place
A pantry shelf away from heat and light works fine for a few months.
But if you want to store walnuts longer, the fridge is even better.
4. Freeze for Long-Term Storage
For storage beyond a year, freeze them.
Walnuts freeze beautifully and keep their flavor for up to two years.
Just thaw them at room temperature before using.
So, How Do You Harvest Walnuts and Store Them?
You harvest walnuts when the hulls split, dry them fully, and store them in a cool, airtight spot.
That’s really all it takes to harvest walnuts and keep them fresh for months.
So next time you harvest walnuts, you’ll know exactly how to store them so they stay delicious.