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Kirkland Signature Grass-Fed Butter

Kirkland Signature Grass-Fed Butter
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This was a brand new Costco product added to the Kirkland Signature line in the first half of 2021. You can now find this Kirkland Signature Grass-Fed Butter in all stores Nationwide. It’s a 2-pound pack of salted butter made from 95% grass-fed butter. Plus, the price of the Kirkland grass-fed butter hasn’t increased in price since in launched around May of 2021!

The flavor and health benefits of grass-fed butter need to introduction…and this comes much anticipated following the mass popularity of Kerrygold Irish Butter, which we posted about some time ago. See the Kerrygold price comparison below!

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With just two ingredients, we love this simple, grass-fed butter! Kudos for this great addition to the Kirkland Signature brand of products.

Kirkland Signature Grass-Fed Butter Nutrition Facts

Costco’s new Grass-Fed Butter has 100 calories and 11 grams of fat per serving.

Kirkland Signature Grass Fed Butter Nutrition Facts
New Costco Grass Fed Butter

kirkland Grass-Fed Butter Ingredients

Pasteurized cream (milk), salt.

Kirkland Grass Fed Butter Costco Item Number & Price

Kirkland Signature Grass-Fed Butter (4) 8oz is Costco Item Number 1424237 and Costs $9.99.

Costco does not carry an unsalted version at this time.

Price Comparison: Kirkland Signature Grass-Fed Butter Price Vs. Kerrygold Butter

4 8 oz bars of Costco’s Kirkland Signature Grass-Fed Butter cost $9.99 vs Kerrygold Grass-Fed Butter which costs $12.99 for the same quantity.

Costco's New Kirkland Signature Grass-Fed Butter from New Zealand
Costco Grass-Fed Butter from New Zealand

Why Grass Fed Butter?

We know that the nutritional content of meat changes dramatically based on what we feed an animal. Well, the same concept applies to butter, and thus grass-fed butter is packed with nutrients and health benefits. Additionally, the vast majority of people simply like it better for it’s flavor.

Pasture-Raised vs. Grass-Fed vs. Organic

The terms grass-fed and pasture-raised and organic can be be confusing. Wouldn’t cows eat grass in a pasture? Farmers don’t put pesticides on pastures do they? So it’s the same thing, right? These can all overlap, but aren’t necessarily one and the same. Like many food labeling “things” these have very specific meanings…here you go:

  • Grass-fed means the cows’ food is grass – it refers to their diet and what they eat
  • Pasture-raised means the cows roam free in pasture – it refers to where they live and spend time
  • Organic means the cow’s grain was organic and the cow wasn’t exposed to pesticides or GMOs – it refers to their diet

Kirkland Signature Butter Cheese Rolls Recipe

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All opinions expressed on CostContessa are our own. Content and information provided on our site is provided for free and is only for informational purposes. Our content is not intended as a substitute for medical counseling or reading packaging yourself. Please always see actual package information yourself (it can and does change!) and consult your doctor.

31 Comments

  1. Does anybody know if some or all of the grain component includes wheat, barley, or rye? On the website it says it is “gluten free”, but I have learned from experience that you can’t always trust that. There was another New Zealand grass-fed butter that Trader Joe’s carried (now discontinued, boo) that was 96-99% grass-fed, but no explanation of the grains, and I did fine on it. I can’t seem to find any more information about the Costco butter.

    1. This post gets a lot of readers/commenters and I hope someone can help answer this – I wish I knew more about it and could help! Sometimes I find that folks on reddit have a lot of inside info (or speculation) about who the manufacturers are of Kirkland Signature products, maybe someone in the Costco group has some ideas about who makes it that might help you in your research?

  2. This organic butter is the most non organic food I have ever eaten. This butter has been sitting in our butter dish for the better part of a week and still has not softened up at all. It’s like cutting a cold cube fresh from the fridge. The Kerry Gold gets soft after 2 hours. I am not sure what radiation cows they are using in New Zealand but I will not be buying this butter again.

  3. I have been looking for this new 95% grass-fed butter by Kirkland and have had no luck in my local costco’s.
    Can you tell me in which states are they carried? I live in Pennsylvania. I even tried to order it online. No luck.
    Please help. Thx.

    1. In truth, I buy the Kerrygold Butter when it’s on sale and stock up – but now that you mention it I’m not sure I’ve seen the Kirkland one recently. I’ll look next time I’m in my store and see if we have it. Perhaps it out of stock. I’ll have to look though!

    2. Kirkland is a brand name used by Costco. Costco has a few Kirkland brands of butter but the 95% grass fed is called “Kirkland New Zealand Butter” which you can only buy at Costco

  4. For me, it’s all about the taste. We tried Kerrygold years ago for health reasons but we love it because of the taste and texture. We would have to be really poor before we went to anything else. So now enter the new Kirkland grass fed butter from New Zealand. When I saw it my hopes were high. I pretty much love anything Costco puts their Kirkland brand on. And it was $2.00 (20%) cheaper than the Kerrygold. So I put a box in the cart to give it a try, along with our usual amount of Kerrygold. We are in the middle of consuming it right now and I must say I am very disappointed in it. Not only doesn’t it have that delicious buttery taste, but it is hard at room temperature. I have to put a pat on my toast/bread and then put it in the microwave to get it soft enough to spread without ripping the bread. I can’t wait till it’s gone and I’m so glad we didn’t leave our beloved Kerrygold behind at the store.

    1. I have not seen unsalted in-store before. The Kerrygold Grass-Fed Butter does come in both salted and unsalted though.

  5. I would like to know the butterfat percentage in Kirkland grass fed butter. Kirkland signature butter is 80% butterfat which is the standard in the U.S. The standard in Europe is at least 83-85 % butterfat. The more butterfat, the better the butter tastes and dairies control the butterfat content when they centrifuge to separate the milk from the cream; so the information should be available. Kirkland grass fed butter definitely tastes better that Kirkland’s signature butter and is worth it just for that. I wonder how much of the taste difference is because the grass fed butter is wrapped in foil which better protects it from absorbing outside flavors. Their signature butter is wrapped in wax paper.

  6. Are the cows treated with rBST? The packaging doesn’t say. If so, they have probably been given antibiotics since rBST causes more stress on the cows.
    Is the grain fed to the cows organic? You give the definition of organic above, but don’t say the grain fed to the cows is organic.The packaging doesn’t say, just grain from local farms. If not, it is probably treated with glyphosate and other pesticides.

    1. I too wish it was disclosed… I’m a food reviewer/reporter and not the manufacturer – just to make sure we’re on the same page 🙂 If you find out PLEASE let me know those answers too. My guess is that they are not treated with rBST but that the grain is not certified organic…just my guesses. I’m sorry I can’t help answer those!

    1. True! I find the marks on Kerrygold not ideal but they are certainly helpful in comparison to none. I hope they add them soon!

    2. YES WE HAVE THE SAME PROBLEM

      CANNOT MEASURE THE BUTTER BY THE TICK MARKS ON THE SIDE LIKE WE’VE BECOME ACCUSTOMED TO USING TO MEASURE THE PROPER AMOUNT OF BUTTER TO USE.

      PLEASE FIX…

      Also will you please specify the content of the 5% feed assuring it has no growth hormone nor glyphosate.

      Thank you!

    1. Grain finishing only happens in meat processing, you can’t grain finish butter. A cows diet will vary seasonally, but when a cow is grassfed on pasture for 365 days there is goodness for 365 days.

    2. Grain is mixed with palm oil. Not good.
      Palm oils are used in everything from engine fuel to lotion, pet food and in our processed foods. Not comfortable feeding our childern products containg palm oils, or even soy products.
      Read read read your labels.

  7. I am very interested in the vitamin K2 content in Kirkland Monterey Jack cheese. Cows that are grass-fed produce high Vit K2 in their milk. I see your beef patties are grass-fed, so is your butter, but there is no information on the cheese. Vitamin K2 is very important in metabolizing Vit D, and without Vit D, calcium is not metabolized. It turns out that K2 and Vit D should be seen as co-vitamins for calcium absorption for strong bones and teeth. I would buy Kirkland Monterey Jack cheese if it is grass-fed.

    1. Few people understand the synergy between Vit D & Vit K2. We could prevent much suffering if people understood how they work together to move calcium for appropriate use/repair then back to storage in the bone. Thanks for advancing the conversation Christine.

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