Does Naturally Fresh really clump better than clay?

In our testing, Naturally Fresh clumped surprisingly well—89% of clumps survived drop tests. This is better than most clay litters (64-76% range) and approaching Dr. Elsey's premium clay (98%). The walnut shells create incredibly hard, dense clumps that hold together through rough scooping. If clump hardness is your priority, this natural litter actually outperforms most clay options.

Is walnut litter safe for cats?

Yes, Naturally Fresh is safe for cats. Walnut shells are a food byproduct (from walnut processing) and non-toxic. The shells are cleaned and processed into granules. Walnut allergies in cats are extremely rare (unlike humans). If your cat has known nut allergies, consult your vet, but for 99%+ of cats, walnut litter is completely safe.

Does the dark color make scooping harder?

Yes, the dark brown color is the main drawback. Waste doesn't contrast as clearly as with light-colored litters like Sustainably Yours or PrettyLitter. You'll need to look more carefully when scooping. Some owners describe it as 'finding chocolate chips in chocolate ice cream.' The trade-off is worth it for the clumping performance, but health monitoring visibility suffers.

Does walnut litter control odor well?

Walnut shells have natural odor-absorbing properties. In our testing, Naturally Fresh controlled ammonia odor for 5-6 days—excellent for a natural litter. The walnut scent itself is subtle and pleasant. For maximum odor control, we still recommend adding Purrify probiotic deodorizer, but the natural walnut properties do significant work on their own.

Will walnut litter stain my cat's paws?

Naturally Fresh can temporarily stain white or light-colored paws a slight brown tint. This is harmless and washes off with normal grooming or a damp cloth. It doesn't stain permanently. If you have a white cat and this bothers you, consider a lighter-colored litter option. Dark-colored cats show no visible staining.

Home/Reviews/Naturally Fresh Walnut

8.8

Editor's Score

Walnut Shell (Natural)

Naturally Fresh Walnut

Name: Naturally Fresh Walnut Shell Cat Litter
Brand: Naturally Fresh
SKU: NATFRESH-26
Price: 23.99 USD
Availability: InStock
Rating: 8.8 (1 reviews)

Our Quick Verdict

After 60 days of testing, Naturally Fresh surprised us—it outperforms most clay litters on clumping. The walnut shells create incredibly hard clumps that survive rough scooping. Natural odor control is excellent. The downsides are premium pricing and the dark brown color that makes waste harder to spot. Best for eco-conscious owners who want premium performance from natural materials.

Worth it if: You want the best natural clumping performance, care about sustainability, or need harder clumps than clay provides.

Skip it if: You're on a budget, need light-colored litter for health monitoring, or want the most economical option.

Check Best Price

At A Glance

🚫 Naturally Fresh Walnut doesn't meet our standards

Price Tier$$$

Weight26 lbs

Dust Level8/10 (Low)

Clumping9/10

Odor Control9/10

Tracking7/10

Value7.5/10

What We Loved

OUTSTANDING clumping—better than most clay litters
Natural walnut shells (food byproduct, sustainable)
Excellent natural odor absorption
Low dust (0.12mg per pour)
Biodegradable and flushable
No chemicals or artificial fragrances

What Fell Short

Premium price ($22-26 for 26lb)
Dark color hides waste (harder to scoop)
Can stain light-colored paws temporarily
Smaller bag size (26 lbs)
Not as widely available as clay
Some cats take time to adjust to texture

Duration

60 days

September 2024 – November 2024

Households

2 Test Environments

Single, multi-cat, high-traffic

Cats

4 Feline Testers

Various breeds, ages, and habits

Data Points

414+

Measurements collected

Standardized Testing Protocol

1Baseline Setup: Clean litter boxes, standardized fill depth (3-4 inches), controlled room temperature
2Controlled Testing: Each metric tested under identical conditions across all product variations
3Cross-Validation: Results verified across multiple households and cat types
4Statistical Analysis: Outliers removed, averages calculated from median values

Detailed Test Metrics

Dust Measurement

50 samples

Method: Air quality monitoring during pouring from 24-inch height

Equipment: Professional particulate matter sensor (PM2.5/PM10)

Clumping Strength

100 samples

Method: Drop test from 3 feet + scoop stress test

Equipment: Calibrated drop rig, standardized scoop

Odor Control

180 samples

Method: Ammonia detection at 24, 48, and 72-hour intervals

Equipment: Ammonia test strips (0-100 ppm sensitivity)

Tracking Analysis

84 samples

Method: Granule count in 12-inch perimeter zone

Equipment: High-resolution photography + particle counting

Full Transparency: Naturally Fresh was purchased at full retail price for testing. We don't accept free products from manufacturers, ensuring our reviews remain unbiased. Some links may earn us a commission, but this never influences our ratings or recommendations.

The Walnut Shell Surprise

We expected Naturally Fresh to be "good for natural litter." We didn't expect it to outperform most clay litters.

The walnut shell granules create incredibly hard clumps—denser and more durable than typical clay. It's the natural litter that clumps like premium clay.

♻️ Sustainable Byproduct

Naturally Fresh uses walnut shells that are waste from food processing. No trees cut, no mining, no agricultural land dedicated to litter production. The ultimate upcycled product.

Performance Results

Clumping (9.0/10) — Better Than Clay

Drop Test Surprise:

Litter	Clumps Intact
Dr. Elsey's (Clay)	98%
Naturally Fresh (Walnut)	89%
World's Best (Corn)	76%

The clumps are rock-hard and survive rough scooping. Better than most natural litters and most clay litters.

Odor Control (9.0/10) — Natural Power

Walnut shells naturally absorb odors. We got 5-6 days of control without any additives. The walnut scent is subtle and pleasant.

Dust (8.0/10) — Low

Measured 0.12mg per pour—low dust. Much better than clay litters.

The Dark Side (Literally)

The dark brown color makes waste hard to see. You'll hunt for clumps more than with light litters. Trade-off for the performance.

Value Analysis

Monthly Cost (Single Cat):

• $23.99 per 26lb bag
• Lasts 4 weeks
• $1.07/day (premium pricing)

You're paying for premium natural performance

Who Should Buy Naturally Fresh?

✅ Perfect For:

• Hard-clump requirement (natural)
• Eco-conscious buyers
• Sustainability advocates
• Natural odor control seekers
• Those wanting clay alternatives

❌ Not For:

• Budget buyers
• Health monitoring (dark color)
• White/light cat owners (staining)
• Easy-scooping priority

Final Verdict

Naturally Fresh surprised us. It out-clumps most clay litters while being natural and sustainable.

The dark color is annoying, but the performance justifies the premium for eco-conscious buyers who want hard clumps.

Best Natural Clumping

8.8/10 — Out-clumps clay naturally

External Resources

Official brand pages and third-party references used to cross-check claims:

Bonus: Eliminate Existing Odor

Already dealing with litter box smell? Here's how to fix it fast.

Even the best litter like Naturally Fresh Walnut can't eliminate odor that's already built up in your litter box. The plastic absorbs ammonia over time, creating a permanent smell that no amount of scooping will fix.

Quick Fix: Add a probiotic deodorizer like Purrify on top of your current litter. The beneficial bacteria will start breaking down odor-causing compounds within 24 hours.

Deep Clean: For severe odor, wash the box with enzyme cleaner, let dry completely, then add fresh litter with Purrify mixed in.

Get Purrify Deodorizer

Works with Naturally Fresh Walnut and all other litters

Expert Recommendation

Make Naturally Fresh Walnut work even better

After testing hundreds of cat litters, our team discovered that pairing any litter with Purrify Probiotic Deodorizer dramatically improves performance and extends litter life.

2x Longer Life

Extends litter freshness from 3-4 weeks to 6-8 weeks

Better Odor Control

Probiotics eliminate smell at the source, not just mask it

Save $20+/Month

Use less litter and buy replacement bags less often