Products · Cooking oils & fats · Marianne’s Harvest
Marianne’s Harvest Organic Beef Tallow
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A one-ingredient organic beef tallow, slow-rendered in a glass jar. The organic and seed-oil seals are paid, “100% grass-fed” has no certifier behind it, and no independent test of the tallow itself exists. About $1.54 an ounce at Walmart.
Best for Cooks who want a plain tallow for frying, searing and roasting, with organic certification, and who accept that its grass-fed claim and purity are the maker’s word.
- Our rating
- Good (3.6 of 5)
- Price range
- Mid-range
- Verified marks
- USDA Organic (processor’s entry lists beef tallow), Seed Oil Free Certified
- Size
- 11 oz (312 g) glass jar, about 22 tablespoons
- Made in
- Cattle born and raised in the United States (maker)
approx. $17 for 11 oz (312 g) at Walmart; $20 at Amazon. Marianne’s has no shop of its own
See it on Marianne’s Harvest’s site → (opens in a new tab)We are not affiliated with Marianne’s Harvest. This link goes to the maker’s own page, with no tracking code. How we're funded.
Also sold at Walmart.com ($17 for 11 oz (listed at $16.98, down from $19.98)), Amazon ($20 for 11 oz ($19.99, or $17.99 with Subscribe & Save)) .
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How we evaluated it
How it scores Our rating, metric by metric
- Ingredients & processing 35% of the rating 5 of 5
One ingredient, organic beef tallow, rendered slowly in small batches with nothing added.
- Independent testing 25% of the rating 2 of 5
Two paid listings, neither of which tests the tallow for contaminants, and no independent result for this jar.
- Packaging 15% of the rating 4 of 5
Glass jar with a metal lid. Clear glass lets light in, which matters less for a stable fat.
- Trust 10% of the rating 3 of 5
No recalls, Prop 65 notices or FDA actions found. “100% grass-fed” has no certifier, and the page quotes creators without saying whether they were paid.
- Value 15% of the rating 3 of 5
About $1.54 an ounce at Walmart and $1.82 at Amazon, in the middle of the fats here.
The rating, 3.6 of 5, is the weighted average of these scores. See how we rank cooking oils & fats and our standard.
Where to buy Stores and the prices we saw
- Walmart.com (opens in a new tab) approx. $17 for 11 oz (listed at $16.98, down from $19.98). Sold by Marianne and fulfilled by Walmart; in stock on 2026-10-23.
- Amazon (opens in a new tab) approx. $20 for 11 oz ($19.99, or $17.99 with Subscribe & Save). Sold by Marianne’s Harvest, the brand’s own storefront, and shipped by Amazon.
Prices as we saw them on October 23, 2026. They change often. These links carry no tracking code and earn us nothing.
What’s in it Every ingredient, in label order
- Organic beef tallow
Who tested it What each test found, and who paid for it
- Paid certification USDA organic certification (CCOF), via the processor October 2026
Adams Vegetable Oils, Inc. is listed as a certified handler with beef tallow and avocado oil in scope. Organic certification covers how the cattle are raised and fed and how the fat is handled. It is not a lab test of this jar. We matched the entry to Marianne’s by company name and city. Open ↗ (opens in a new tab)
- Paid certification Seed Oil Free Alliance August 2025
Lists Marianne’s Organic 100% Grass-Fed Beef Tallow as certified. The maker pays a licensing fee. A product with no added oil or refined fat is eligible without initial testing and is spot-checked during the license term. It does not test freshness or contaminants. Open ↗ (opens in a new tab)
Who paid, and why it matters
- Independent The tester took no money from the maker for it: a consumer group, a journalist, a university or a regulator.
- Paid certification An outside lab or certifier tested or listed it, and the maker paid for that.
- Maker’s own test A lab report or certificate of analysis the maker commissioned and published.
A certification is a floor, not a verdict: it checks what its program checks and nothing else. We weigh tests by someone with no stake in the result most.
What people ask Worries raised online and elsewhere, and what we found
- Is it really 100% grass-fed?
- The jar and the page say so, and no certifier is named. We found no grass-fed listing for it in A Greener World’s directory, and the American Grassfed Association’s site search and approved-products page show no Marianne’s. USDA organic rules require pasture access, which is not the same as grass-fed for life.
- Does tallow carry phthalates or other plasticizers?
- It can. Mamavation tested 11 tallows and 2 beef suets in November 2024 (opens in a new tab) and found total phthalates from non-detect to 922 ppb, with Epic at 782 ppb and Fatworks beef tallow at 922 ppb. Marianne’s was not among them, so we cannot say where it falls.
- Is tallow healthy, or a trend sold by influencers?
- Tallow is about half saturated fat and has no outcome trials of its own. Our seed oil alternatives guide treats it as a stable fat for occasional high-heat cooking. Marianne’s page quotes creators such as @noshwithtash; it does not say whether they were paid or sent product.
Why we chose it What put it on our list
- The ingredient list is one line: organic beef tallow. Nothing is added, and the maker says it is rendered slowly in small batches. A tablespoon (14 g) has 130 calories, 13 g of fat and 7 g of saturated fat.
- The USDA Organic Integrity Database lists Adams Vegetable Oils, Inc. of Arbuckle, California as certified (by CCOF, since 09/15/2016) with “Beef (Beef Tallow)” in its handling scope. Marianne’s says Adams Group makes it, and the jar carries the USDA Organic seal.
- The Seed Oil Free Alliance lists “Marianne’s Organic 100% Grass-Fed Beef Tallow” as certified, a test aimed at hidden seed oils, a fair worry for a fat sold as pure.
- It comes in glass, and the maker gives a smoke point of up to 400°F.
Trade-offs What to weigh before you buy
- About half the fat is saturated (7 of 13 g a tablespoon). Our seed oil alternatives guide lists tallow as a stable fat for high heat but says saturated fat and heart health are still debated.
- “100% grass-fed” is the maker’s claim. We found no grass-fed certifier listing: A Greener World’s directory returned no tallow on 22 October, and the American Grassfed Association’s site search and approved-products page showed no Marianne’s on 23 October. Organic rules require pasture access, which is not the same thing.
- We found no independent test of this tallow for heavy metals, pesticides or plasticizers. The tallows and suets Mamavation did test in 2024 ranged from non-detect to 922 ppb of phthalates, so the brand matters.
- The jar is clear glass, so it does not block light. The maker says to keep it sealed in a cool, dry place and to refrigerate it for longer freshness. The label gives total and saturated fat only, and we did not see a best-by date.
What to know Details worth knowing first
Tallow is rendered beef fat. Our seed oil alternatives guide lists it with ghee and avocado oil as a stable fat for high-heat cooking. Because it is a single-ingredient fat, the useful questions are how the cattle were raised and whether anything unwanted came along with the fat.
Marianne’s answers part of the first with records we could open: a USDA organic certificate for the processor that covers beef tallow, and a seed-oil testing listing for this product. The 100% grass-fed claim is the maker’s own. Nobody has published a test of this tallow for metals, pesticides or plasticizers, and the other tallows that were tested did not all come out clean.
About half the fat is saturated, so it suits occasional frying and roasting more than daily use. Keep the jar sealed in a cupboard, or in the fridge as the maker suggests. For what the evidence says about fats under heat, see which oils are safe for high-heat cooking.
What we checked Each claim, and how sure we are of it
| What we checked | What we found |
|---|---|
| Purity you can check Verified | The processor is in the USDA Organic Integrity Database with beef tallow in scope. The Seed Oil Free Alliance lists this tallow. We matched the USDA entry to Marianne’s by company name and city; Marianne’s names “Adams Group”, not the legal entity. |
| Fat profile stated Maker’s claim | Label: 130 calories, 13 g fat and 7 g saturated fat per tablespoon. Monounsaturated and polyunsaturated fat are not listed. |
| Made without solvents Maker’s claim | Slow-rendered in small batches, per the maker. A rendered fat is made with heat, and no solvent is mentioned. |
| Packaging that blocks light, with a date Maker’s claim | Clear glass jar with a metal lid, in the product photo. We did not see a date. |
| A traceable source Maker’s claim | Cattle born and raised in the United States, pasture-raised, per the maker. No ranch or state is named. |
| 100% grass-fed Maker’s claim | The maker’s claim, on the jar and its page. No grass-fed certifier listing found. |
What the labels mean
- Verified We opened an independent record that confirms it: a certifier’s listing, a regulator’s list or a lab report. It is linked under Sources.
- Maker’s claim The maker says so on its own page or label. We read it but found no independent record.
- Not verified We looked and could not confirm it, or the maker does not say. Treat it as unknown.
Sources Where our facts come from
- Marianne’s Harvest Organic Beef Tallow product page. Maker’s page. Open ↗ (opens in a new tab)
- USDA Organic Integrity Database: Adams Vegetable Oils, Inc.. Certifier or regulator listing. Certified handling operation, CCOF, effective 09/15/2016. The scope lists beef tallow and avocado oil. Profile updated 10/19/2026; re-read in a browser on 2026-10-23. Open ↗ (opens in a new tab)
- Seed Oil Free Alliance: Marianne’s Organic 100% Grass-Fed Beef Tallow. Certifier or regulator listing. Open ↗ (opens in a new tab)
- Seed Oil Free Alliance: how certification works, and what it costs. Independent source. Paid licensing; products with no added oil or refined fat are eligible without initial testing and are spot-checked. Open ↗ (opens in a new tab)
- Mamavation: Tallow and beef suet tested for toxic phthalates (November 2024). Test report. EPA-certified lab, one sample per brand, no result for Marianne’s. The site earns affiliate income. Open ↗ (opens in a new tab)
- Walmart.com listing for Marianne’s Organic Beef Tallow. Independent source. Price, seller and product photos, including the label. Open ↗ (opens in a new tab)
- California Attorney General: Prop 65 60-day notice search. Certifier or regulator listing. Searched by alleged violator on 23 Oct 2026 for Marianne’s, Adams Group and Adams Vegetable Oils: no notice. openFDA food enforcement also showed no report for Marianne’s. Open ↗ (opens in a new tab)
Alternatives Other options to compare
- Marianne’s Harvest Classic Avocado Oil From the same maker, for neutral high-heat cooking. About the same price for 500 mL, and an independent test found it pure in 2020.
- Pure Indian Foods Organic Cultured Ghee A dairy fat for high heat, made from grass-fed cultured butter. About $15 for 7.5 oz.