Baking Soda Cat Litter Deodorizer: DIY vs Product
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Quick answer. We could not verify a source for what baking soda does to odor in cat litter, so this post states no odor result. Cornell’s house-soiling guidance says most cats prefer unscented litter. Four of the five products named here are scented, and their odor periods are listing claims. The ARM & HAMMER and Cat’s Pride listings both say to remove solids daily. Check the current price on Amazon before you buy.
This guide compares baking soda with four scented products and one unscented option from the research file. It does not rank them.
Can the baking soda claim be verified?
Not from the sources we could open. The Cornell house-soiling page says most cats prefer unscented litter. It recommends odor neutralizers for sprayed areas, which is a different use from litter, and it does not mention baking soda or litter deodorizers. A product listing that names baking soda describes that product’s formula. It is a listing claim, not a test result, so this post does not use it as proof for a DIY mix.
Terms used in this guide
- DIY mix. Baking soda sprinkled over the litter you already use. No listing in our research gives a dose for it.
- Scented and unscented. The scent as each listing states it. Cornell says most cats prefer unscented litter.
- Odor period. The number of days a seller says odor control lasts, such as 14 days or 30 days. It is the seller’s claim, and we did not check any of them.
- Listing claim. A statement the seller makes on its product page. It is not a test result.
- Odor neutralizer. Cornell’s term for a product applied to an area where a cat has sprayed. Cornell does not describe it as a litter ingredient.
Comparison: DIY, scented products and unscented litter
| Option | Scent (as listed) | Odor claim (as listed) | Baking soda (as listed) | Listed weight |
|---|---|---|---|---|
| DIY: baking soda sprinkled over plain litter | Not applicable | None verified | Your own mix; no listing | You choose |
| ARM & HAMMER Clump & Seal Platinum, Multi-Cat (affiliate link) | Freshly scented | Stays fresh up to 14 days (listing summary) | Yes: “natural ARM & HAMMER Baking Soda” in the bullets | 18 lb |
| Fresh Step Odor Shield Multi Cat (affiliate link) | Febreze freshness | 15 days, with terms on the package | Not mentioned; Ammonia Block technology | 14 lb |
| Purina Tidy Cats Performance Plus Active Clean (affiliate link) | Scented | 30-day odor control when used as directed (title) | Not mentioned; “active odor neutralizers” | 22 lb in the title; 19 pounds in the details table |
| Cat’s Pride Total Odor Control, Scented (affiliate link) | Scented | 10 days of odor control (bullets) | Not mentioned | 15 pounds; 16.6 lb in a comparison table |
| World’s Best Cat Litter Comfort Care, Unscented (affiliate link) | Unscented | “Outstanding odor control” (bullets); the “lasts 2x longer” comparison is not checked | Not mentioned; corn and plant fibers | 32 lb |
Each row is from a listing captured on 2026-10-17. The odor claims are the sellers’ own, and we did not measure any of them.
Worked example: litter depth and daily scooping
The ARM & HAMMER and Cat’s Pride listings both say to fill the box to 3 to 4 inches. For example, filling to 4 inches instead of 3 uses one-third more litter in the same box. The listings give no amount of baking soda for a DIY mix, so a DIY plan has no stated dose to follow.
The sources also disagree on depth. Cornell’s Quick Tips version of its litter advice says most cats prefer unscented, finer-textured litter “about one to two inches deep.” We show both figures and do not settle the conflict. Our rule of thumb: 2 inches is one-third less than 3 inches, and 1 inch is two-thirds less. The depth you can use depends on the box, so check box sizes in our litter box guide for small apartments before you choose a depth.
Worked example: weights and odor periods
Purina’s title says 22 lb and its details table says 19 pounds. A 3 lb gap is 14 percent of the 22 lb title figure (3 ÷ 22 = 0.136). Cat’s Pride’s 15 pounds and 16.6 lb differ by 1.6 lb, about 11 percent of 15 (1.6 ÷ 15 = 0.107). Our rule of thumb: confirm the bag weight before you compare two bags, because a gap of that size changes any per-pound comparison by the same share.
Odor periods are hard to compare too. If you read each period as the time one bag lasts, a year would need about 26 bags at the 14 days of the ARM & HAMMER summary (365 ÷ 14 = 26.1), about 37 at the 10 days of Cat’s Pride (365 ÷ 10 = 36.5), and about 12 at the 30 days of Purina when used as directed (365 ÷ 30 = 12.2). The listings do not say a bag ends its odor control on that day. Read the numbers as a check on how far the claims differ, not as a purchase plan.
Decision rule
- Choose unscented litter if you want to avoid scent, because Cornell says most cats prefer unscented litter. World’s Best is the only unscented option in this group.
- Choose a scented product only if you want the listing’s odor period, and read the claim on the package. The period is the seller’s claim, not a result we checked.
- Choose a DIY mix only if you accept that the odor effect is unknown. Watch whether your cat keeps using the box.
Whichever you choose, the ARM & HAMMER and Cat’s Pride listings both say to remove solids daily. ARM & HAMMER says to empty the whole box once a month. Cat’s Pride says to clean the box with mild detergent once a month.
When you may not need a special litter
If your current litter stays dry and clean-looking between changes, and your cat keeps using the box, the source gives no reason to switch. Cornell’s test is the one that applies to any litter: change it when it stops looking and smelling dry and clean. A new product or a DIY mix would need its own test, and this post does not provide one.
Mistakes to avoid
- Reading baking soda in a product’s formula as proof of odor control. The ARM & HAMMER listing says it has “heavy-duty odor eliminators with natural ARM & HAMMER Baking Soda”, which is a claim about the product.
- Copying a product’s odor period, such as 14 days or 15 days, into a DIY plan. Those periods belong to each listing.
- Assuming a product is unscented from its name. Only World’s Best is listed as unscented in this group.
- Ignoring weight conflicts. Purina lists 22 lb in its title and 19 pounds in its details table, and Cat’s Pride lists 15 pounds and 16.6 lb.
- Using the “lasts 2x longer” claim for World’s Best as a number. Our research did not check that comparison.
- Expecting a cat to accept a DIY mix because the litter looks dry. We have no source on how cats respond to baking soda in litter.
Who should skip this guide
Skip this guide if your cat has a litter problem, because it is a question for your vet. This guide does not give health advice. The Cat’s Pride listing says it “does not protect users or others against disease-causing bacteria” and says to wash hands after handling used litter. Read that note before you handle used litter.
For a litter box that fits a small space, see our small-apartment litter box guide. For less manual cleaning, our self-cleaning litter box guide covers that.
FAQ
Does baking soda control cat litter odor?
We could not verify a source for an odor result, so this post states none. Some product listings name baking soda in their formula, which is a listing claim.
Should I buy unscented litter?
Cornell’s page says most cats prefer unscented litter. World’s Best Comfort Care is the unscented option in this group.
How long does the ARM & HAMMER odor control last?
The listing summary says it stays fresh up to 14 days with heavy-duty odor control. That is the seller’s claim, not a result we checked.
How deep should the litter be?
The ARM & HAMMER and Cat’s Pride listings both say 3 to 4 inches. Cornell’s Quick Tips version says one to two inches, so the sources conflict.
Do the listed weights agree?
No. Purina lists 22 lb in its title and 19 pounds in its details table. Cat’s Pride lists 15 pounds in its details and 16.6 lb in a comparison table.
Does Cornell’s page mention baking soda?
No. The Cornell house-soiling page does not mention baking soda. It does recommend odor neutralizers for areas where a cat has sprayed, which is a different use from litter.
Sources
- Cornell Feline Health Center, Feline Behavior Problems: House Soiling. Cited for: most cats prefer unscented litter; the odor neutralizer advice for sprayed areas; the one-to-two-inch depth in its Quick Tips version; and the fact that it does not mention baking soda.
- Product facts: Amazon listing data captured 2026-10-17 in the research file. Specs and odor claims are as the seller states them. We did not measure them.
