Costco shoppers are renowned for their candid feedback on products from the superstore's in-house brand, Kirkland Signature. As one of the most popular retailers in the United States, Costco is celebrated for delivering exceptional value to its customers. With over 630 warehouses nationwide as of March 2026, the company continues to expand, outpacing competitors like Target in the big-box store arena.
Memberships start at $65 annually, granting access to iconic amenities such as the food court and a vast array of household essentials, from wine to tires. While the fee might appear high, it is often quickly recouped through bulk pricing on food staples. Many shoppers argue that the affordability and quality of Kirkland brand products more than justify the cost. However, not every item earns rave reviews—here are the Kirkland Signature products that customers recommend skipping.
Kirkland Signature Pepperoni Pizza: A Frozen Letdown
It's challenging to ruin a pizza, but some Costco members claim the Kirkland Signature Pepperoni Pizza falls short. Comparable to frozen brands like DiGiorno or Red Baron, this dish has drawn criticism for its lackluster taste. One Reddit user remarked that it "definitely tastes cheap," though this is somewhat expected for frozen fare. Another shopper expressed disappointment, noting, "I didn't like it. There didn't seem to be flavor anywhere, especially the pepperoni."
Kirkland Signature Reduced Sodium Dry Salame: Tough and Tasteless
Marketed as a healthier option in a resealable container, this salami is among the lowest-rated items on Costco's website. Described as "Italian-style" and milk-free, it has been panned by disgruntled members. One review highlighted its "very tough to chew with a wax jerky texture and not a lot of flavor," making it a product many advise avoiding.
Kirkland Signature Lightly Breaded Chicken Breast Chunks: Salty and Rubbery
Offering 16 grams of protein per serving and no antibiotics, these pre-cooked chicken chunks should be a convenient protein source. However, customers have complained about an overly salty flavor and unappealing texture. A Reddit user shared, "Is it just me or is anyone else getting more and more weird chunks, rubbery and tough... the last two bags I've had have been pretty off-putting."
Kirkland Signature Mild Italian Sausage: Flavor and Consistency Issues
Expected to be snappy and juicy, this mild sausage has disappointed some shoppers. One noted it felt "too mild," lacking sufficient seasoning, while others found it too salty. A review summed it up: "Weird consistency, too salty, not enough flavor, and when fully cooked have a weird 'uncooked' pink coloration. Never getting these again."
Kirkland Signature Protein Bar: Chemical Aftertaste
With 21 grams of protein and only 190 calories per bar, this product is a solid nutritional choice. Yet, customers have deducted points for taste and texture, describing it as "chemically and slightly bitter." For a slightly higher price, Costco offers Pure Protein Bars as an alternative, which some prefer.
Kirkland Signature Organic Greek Feta: Lacking Authenticity
In rankings by Tasting Table, this organic feta cheese landed near the bottom, criticized for tasting "different" than traditional feta. Made in Greece and organic, it fails to deliver the salty, crumbly texture expected from authentic feta. One review stated, "This cheese is not for savoring or eating alone. It is barely edible, very low quality feta. Will not be purchasing again."
Kirkland Signature Organic Spinach & Cheese Ravioli: Quality Control Problems
Promising quick preparation in four minutes, this ravioli comes with about 12 servings per package. However, customers have reported issues with quality control, including one shopper who found six ravioli "completely empty," missing the spinach and cheese filling entirely.
Despite these misses, a key advantage of shopping at Costco is their "satisfaction guaranteed" policy, which encourages members to seek refunds for unsatisfactory Kirkland products. This commitment to customer service helps maintain loyalty, even when some items don't meet expectations.
