Costco’s Kirkland Signature brand is famous/offering solid value in bulk. But just because it’s in a big package doesn’t mean it’s always a great buy. I dug into Costco’s dairy aisle and rounded up the 5 best and 3 worst Kirkland Signature dairy products based on price, quality, and how practical the quantity is. Here’s what to scoop up—and what to skip.
Best:
Kirkland Signature Greek Yogurt $6.79/48 oz
This thick, tangy yogurt rivals Fage at a much better price. Packed with live cultures and protein, it’s perfect/breakfast or savory sauces.
Nutritional Facts
- Calories 110
- Total Fat 0g
- Carbs 6g
- Sodium 55mg
- Sugar 4g
- Protein 18g
Ingredients
Cultured pasteurized nonfat milk.
Preparation Instructions
Refrigerate and use within 7–10 days of opening.
Kirkland Signature Sharp Cheddar Cheese $6.29/2 lbs
This cheddar block offers rich, tangy flavor, melts like a dream, and freezes well. An all-around winner.
Nutritional Facts
- Calories 120
- Total Fat 10g
- Carbs 1g
- Sodium 200mg
- Sugar 0g
- Protein 7g
Ingredients
Pasteurized milk, salt, enzymes, annatto/color.
Preparation Instructions
Keep refrigerated. Freeze extra if needed.
Kirkland Signature Super Premium Vanilla Ice Cream $14.99/1 gallon
Thick, rich, and churned with less air, this “super premium” vanilla ice cream is a decadent treat that beats pricier brands.
Nutritional Facts
- Calories 360
- Total Fat 24g
- Carbs 29g
- Sodium 90mg
- Sugar 27g
- Protein 6g
Ingredients
Cream, milk, sugar, egg yolks, vanilla extract.
Preparation Instructions
Keep frozen. Let soften 5 minutes before scooping.
Kirkland Signature Whipped Cream $9.99/3 x 15 oz cans
Creamy, sweet, and shelf-stable/months, this whipped cream is perfect/topping drinks and desserts—and it tastes fantastic.
Nutritional Facts
- Calories 15
- Total Fat 1g
- Carbs 1g
- Sodium 0mg
- Sugar 1g
- Protein 0g
Ingredients
Cream, water, sugar, nitrous oxide, natural flavor, carrageenan.
Preparation Instructions
Store refrigerated. Shake well before using.
Kirkland Signature Grass-Fed Butter $9.99/2 lbs
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With a rich, creamy texture and great flavor, this butter rivals Kerrygold at a lower price. Excellent/baking and spreading.
Nutritional Facts
- Calories 100
- Total Fat 11g
- Carbs 0g
- Sodium 90mg
- Sugar 0g
- Protein 0g
Ingredients
Pasteurized cream, salt.
Preparation Instructions
Keep refrigerated or freeze. Let soften before use.
Worst:
Kirkland Signature Shredded Cheese $14.59/5 lbs
While affordable, this shredded cheese lacks flavor and melts poorly. Plus, 5 pounds is just too much unless you’re cooking/an army.
Nutritional Facts
- Calories 110
- Total Fat 9g
- Carbs 1g
- Sodium 180mg
- Sugar 0g
- Protein 7g
Ingredients
Pasteurized milk, salt, enzymes, potato starch, natamycin.
Preparation Instructions
Freeze if needed. Use in cooked dishes, though texture may be subpar.
Kirkland Signature Mozzarella $0.24/oz

Pre-sliced and overly moist, this fresh mozzarella spoils fast and lacks versatility. Unless you’re feeding a crowd, skip it.
Nutritional Facts
- Calories 70
- Total Fat 5g
- Carbs 1g
- Sodium 85mg
- Sugar 0g
- Protein 6g
Ingredients
Pasteurized milk, vinegar, enzymes, salt.
Preparation Instructions
Keep refrigerated. Not ideal/freezing due to texture changes.
Kirkland Signature Milk $4.75/gallon
Standard milk in a hard-to-pour jug at the same price as grocery store milk. Nothing special here—and the packaging makes it worse.
Nutritional Facts
- Calories 150
- Total Fat 8g
- Carbs 12g
- Sodium 120mg
- Sugar 12g
- Protein 8g
Ingredients
Pasteurized whole milk, vitamin D3.
Preparation Instructions
Store refrigerated. Shake before use.
Final Thoughts
While Kirkland Signature hits the mark on quality and value with yogurt, cheddar, butter, and ice cream, some items—like fresh mozzarella or those giant cheese bags—miss the mark on usability. Shop smart, freeze what you can, and stick to the dairy staples that truly deliver on taste, value, and convenience.
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