Costco is a favorite destination for bulk shoppers and bargain hunters, but not every product on its shelves lives up to the hype. With millions of members and a vast selection, it’s inevitable that some items spark more frustration than satisfaction. Whether it’s quality issues, misleading packaging, or disappointing taste, certain Costco products have generated a steady stream of consumer complaints this year. Knowing which items to approach with caution can save you money, time, and disappointment. If you’re a regular Costco shopper, this list will help you make smarter choices and avoid the pitfalls that have caught others off guard. Let’s dive into the 10 Costco items with the most consumer complaints this year and see what you should watch out for on your next trip.

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1. Kirkland Signature Bath Tissue
Costco’s Kirkland Signature Bath Tissue is a staple in many households, but it’s also one of the most complained-about items this year. Shoppers have reported that the quality has declined, with the paper feeling thinner and less absorbent than in previous years. Some users have even experienced issues with the tissue clogging their plumbing, leading to costly repairs. If you’re particular about your toilet paper, consider buying a smaller pack first to test it out before committing to a bulk purchase.
2. Rotisserie Chicken
Costco’s rotisserie chicken is famous for its low price, but it’s also drawn criticism for inconsistent quality. Many customers have complained about the chicken being overly salty, dry, or undercooked. Some have even found bones in unexpected places, making it a less convenient meal option. If you rely on this item for quick dinners, check the chicken thoroughly before serving and consider seasoning it yourself to balance the saltiness.
3. Kirkland Signature Organic Eggs
Eggs are a grocery staple, but Costco’s Kirkland Signature Organic Eggs have faced a wave of complaints this year. Shoppers have reported finding cracked or dirty eggs in their cartons, and some have noticed a shorter shelf life compared to other brands. If you’re buying eggs in bulk, inspect each carton carefully and store them properly to maximize freshness.
4. Fresh Berries
Costco’s fresh berries, especially strawberries and blueberries, are popular for their value, but they’re also notorious for spoiling quickly. Many customers have opened their containers to find moldy or mushy berries, sometimes just a day or two after purchase. To avoid waste, check the bottom of the container for hidden mold and plan to use or freeze the berries soon after buying.
5. Kirkland Signature Laundry Detergent
Laundry detergent is another Costco essential that’s received mixed reviews. Some users have complained about the Kirkland Signature Laundry Detergent causing skin irritation or not dissolving properly in cold water. Others have found that it leaves residue on clothes, especially in high-efficiency washers. If you have sensitive skin or a newer washing machine, you might want to try a smaller bottle before stocking up.

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6. Pre-Packaged Salads
Pre-packaged salads from Costco offer convenience, but they’ve also been the subject of frequent complaints. Shoppers have reported finding wilted greens, slimy leaves, or even insects in their salad mixes. The short shelf life and inconsistent freshness can make these salads a risky buy. Always check the expiration date and inspect the contents before purchasing.
7. Kirkland Signature Bacon
Bacon lovers have voiced their disappointment with Kirkland Signature Bacon this year, citing issues with excessive fat, uneven slices, and a lack of flavor. Some customers have also noticed that the bacon shrinks significantly when cooked, leaving less meat than expected. If you’re particular about your bacon, consider trying a different brand or buying from the butcher section.
8. Frozen Shrimp
Frozen shrimp is a convenient protein option, but Costco’s offerings have received complaints about a fishy smell, rubbery texture, and inconsistent sizing. Some shoppers have also found that the shrimp is not deveined, adding extra prep time. If you’re planning a special meal, read the packaging carefully and consider thawing a small portion first to check quality.
9. Kirkland Signature Coffee
Coffee is essential for many, but Kirkland Signature Coffee has dissatisfied some Costco shoppers. Complaints include a bitter taste, weak flavor, and stale beans. Some users have also found inconsistent grind, affecting the brewing process. If you’re particular about your coffee, you might want to sample a smaller bag before committing to a large purchase.
10. Kirkland Signature Diapers
Parents have reported a range of issues with Kirkland Signature Diapers, from poor absorbency to uncomfortable fit and skin irritation. Some have found that the diapers leak overnight or don’t hold up as well as other brands. If you’re trying these for the first time, consider buying a small pack and monitoring your child’s reaction before buying in bulk.
Smart Shopping Means Staying Informed
Shopping at Costco can be a great way to save money, but it pays to be aware of the most common consumer complaints. By knowing which items have sparked the most frustration this year, you can make more informed choices and avoid costly mistakes. Always inspect products carefully, read reviews, and don’t hesitate to return items that don’t meet your expectations. Your feedback helps Costco improve, and sharing your experiences can help other shoppers make better decisions.
What Costco items have you had issues with this year? Share your experiences or tips in the comments below!
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