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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!


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

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.