Costco shoppers have been raising more concerns in 2026 about familiar favorites that no longer seem to deliver the same freshness, flavor, texture, or overall value. Based on recurring customer complaints and reports from 2025 through June 2026, these 20 Costco and Kirkland items appear most often in quality-decline discussions.
1. Costco Fresh Produce (Strawberries, Broccoli Florets, Cauliflower, etc.)
Approx. $4–$12 per package (varies by item & location)
- Description: Fresh strawberries, broccoli/cauliflower florets, and other fruits & vegetables sold in the produce section.
- Reason for Quality Decline: Rapid spoilage, quick browning or molding, and significantly shorter shelf life. Customers report items turning bad within hours or days of purchase (ongoing Reddit & Facebook complaints 2025–2026).
2. Kirkland Signature Chicken Chunks
Approx. $12–$15 per bag
- Description: Pre-cooked Kirkland Signature chicken chunks sold in large resealable bags.
- Reason for Quality Decline: Roughly 25% of bags contain tough, chewy, woody, grainy, or spongy pieces. Texture complaints have persisted and been compared to poor-quality factory-farmed chicken (Reddit & review roundups 2025–2026).
3. Kirkland Signature Bacon
Approx. $10–$14 per package
- Description: Kirkland Signature bacon strips in bulk packaging.
- Reason for Quality Decline: Gamey flavor, overly thin strips that disintegrate when cooking, excessive fattiness, and poor texture (described as “Halloween cobwebs”). Post-COVID cost-cutting cited in customer feedback.
4. Ling Ling All Natural Potstickers
Approx. $10–$13 per bag
- Description: Ling Ling brand All Natural Potstickers (chicken or vegetable) sold at Costco.
- Reason for Quality Decline: Noticeable flavor drop, fewer ingredients/filling per dumpling, and thicker wrappers. Many customers suspect a recipe change and now prefer alternatives like Bibigo.
5. Beecher’s “World’s Best” Mac & Cheese
Approx. $10–$14 per tray
- Description: Beecher’s frozen Mac & Cheese (often labeled “World’s Best”) sold at Costco.
- Reason for Quality Decline: Sauce is significantly less flavorful. Customers report it tastes noticeably worse than 1–2 years ago and suspect cheaper ingredients or recipe reformulation.
6. Kirkland Signature Organic Oat Milk
Approx. $8–$11 per 2-pack
- Description: Kirkland Signature organic oat milk in large cartons.
- Reason for Quality Decline: Poor frothing for coffee drinks, unpleasant separation, and chalky/artificial aftertaste. Performance declined from previous years according to barista-style users.
7. Kirkland Signature Bacon Crumbles
Approx. $8–$11 per bag
- Description: Kirkland Signature real bacon crumbles in resealable packaging.
- Reason for Quality Decline: Metallic or unappetizing flavor and excessive fattiness that makes them chewy and unpleasant. Many shoppers say they “hit differently (worse)” now.
8. Kirkland Signature Breakfast Sandwiches
Approx. $12–$16 per box
- Description: Pre-made Kirkland Signature breakfast sandwiches with croissant, bacon, egg, and cheese.
- Reason for Quality Decline: Sandwiches are smaller, bacon is much thinner and chewier, egg portions reduced, and overall less filling. No corresponding price drop despite quality reductions.
9. Kirkland Signature Butter
Approx. $8–$12 per pack (4 lbs)
- Description: Kirkland Signature butter quarters or blocks sold in bulk.
- Reason for Quality Decline: Poor performance in baking (crumbly pie crusts, dry icing, subpar cookies). Does not soften properly at room temperature; recent complaints of changed taste and texture.
10. Kirkland Signature Tortilla Chips
Approx. $6–$9 per large bag
- Description: Kirkland Signature tortilla chips in extra-large bags.
- Reason for Quality Decline: Lack of flavor, overly brittle and crumbly texture that feels stale. Long-time buyers who purchased dozens of bags yearly now avoid them.
11. Costco Bakery Muffins
Approx. $6.99–$9.99 per pack (post-2025 sizing)
- Description: Costco’s famous large bakery muffins (blueberry, chocolate, etc.), now in smaller 8-count packs.
- Reason for Quality Decline: Major 2025 changes to size and recipe resulted in dry, crumbly texture, muffins that fall apart, and noticeably worse taste. Widespread “will never buy again” sentiment on Reddit, YouTube, and articles through 2026.
12. Kirkland Signature Chicken Tortilla Soup
Approx. $8–$11 per container
- Description: Kirkland Signature Chicken Tortilla Soup (refrigerated or shelf-stable).
- Reason for Quality Decline: New recipe introduced in late 2025; previous fans say flavor and quality declined sharply from its former top-ranked status.
13. Ritz Crackers (sold at Costco)
Approx. $8–$12 per large box
- Description: Ritz Crackers in bulk packaging available at Costco.
- Reason for Quality Decline: Often less baked and inferior in texture/taste compared to the same product bought at regular grocery stores (December 2025 Reddit complaints amplified in 2026 coverage).
14. Kirkland Signature Colombian Supremo Coffee
Approx. $12–$16 per 3 lb bag
- Description: Kirkland Signature whole bean or ground Colombian Supremo coffee.
- Reason for Quality Decline: Bitter, acidic, or bland taste with loss of full-bodied flavor. Multiple 2025 customer reviews noted the change.
15. Kirkland Signature Diapers
Approx. $35–$45 per box (size-dependent)
- Description: Kirkland Signature diapers (various sizes).
- Reason for Quality Decline: Became noticeably thinner and lower quality after early 2025 supplier switch (from Kimberly-Clark to First Quality). High volume of negative reviews followed.
16. Costco Rotisserie Chicken
Approx. $4.99–$5.99 (iconic price)
- Description: Freshly prepared $4.99–$5.99 rotisserie chicken (famous loss-leader item).
- Reason for Quality Decline: Reports of chemical/chlorine-like taste, drier texture, and “off” flavor. Multiple Reddit threads and YouTube videos from 2025–2026 highlight declining consistency.
17. Kirkland Signature or Popular Frozen Pizza
Approx. $10–$15 per pizza
- Description: Frozen pizzas (Kirkland Signature or name brands) sold at Costco.
- Reason for Quality Decline: Changes in cheese quality, cooking performance, and overall taste noted in customer feedback and roundups.
18. Kirkland Signature Granola Bars
Approx. $10–$14 per box
- Description: Kirkland Signature granola or protein bars in variety packs.
- Reason for Quality Decline: Declining texture and ingredient quality reported in aggregated 2025 customer discussions.
19. Kirkland Signature Purified Water
Approx. $6–$9 per case
- Description: Kirkland Signature purified or bottled water in bulk cases.
- Reason for Quality Decline: Off or changed taste complaints surfaced prominently in 2025 YouTube customer analyses and discussions.
20. Costco Food Court Chicken Alfredo or Pizza
Approx. $3–$4 per item (food court pricing)
- Description: Popular Costco food court items such as Chicken Alfredo or pizza slices.
- Reason for Quality Decline: Changes in dough texture, cheese that slides off, and blander flavor reported in 2025–2026 “foods that taste different now” videos and Reddit threads.
