7 Costco Finds Worth Buying Before They Disappear

The One Costco Buy You Should Grab First

A Costco seasonal buying guide is a curated list of rotating, limited-time products that deliver strong value and flavor, helping shoppers prioritize which new arrivals to grab before they sell out and disappear for the season.

Start your cart with Kirkland Signature organic Mexico whole bean coffee, the standout pick for most shoppers who care about both taste and value. Sold in two-packs of 2-pound bags, this medium-roast coffee uses beans grown in Oaxaca at high altitudes, with tasting notes of caramel, chocolate, and roasted peanuts. Reviewers have given it an average 4.8 out of 5 stars, with many calling the flavor “balanced and smooth” and praising its clean finish. Even though it sits above rock-bottom budget coffee, it is a relative bargain compared with specialty beans and big-name brands. In other words, you get specialty-level flavor without paying specialty-level prices, making it the most reliable everyday buy on this list and the first item you should hunt down in the coffee aisle.

Frozen Desserts: Ube Ice Cream and Oreo Cheesecakes

Costco new arrivals in the freezer case are all about end-of-summer comfort, and two dessert buys deserve a spot in your cart before they sell out fast. Magnolia’s Ube Ice Cream Variety Pack is the most playful seasonal grocery buy right now: you get 2 pints, one Jack’ed Ube with purple yam and jackfruit swirl, and one Fireside Ube with purple yam and s’mores flavor. These flavors bring a colorful twist to late-night scoops and weekend gatherings. If you prefer bite-size treats, the Oreo cheesecakes are a limited edition product made for sharing. You get 6 mini cheesecakes topped with real Oreo cookie pieces, each packed into its own cup and described as rich and creamy. Keep both on hand to cover everything from casual family desserts to quick party platters.

Deli Wins: Pretzel Bun Sandwiches and Al Pastor Pork

The deli section is one of the most exciting places to spot Costco new arrivals, and this month’s lineup leans hard into convenient, flavor-heavy meals. The Pretzel Bun Sandwiches are marked as new and come ready-to-eat with seasoned chicken breast, lettuce, Swiss and cheddar cheese, and a tangy mustard mayo on a soft pretzel bun. They are a smart grab-and-go lunch when you want something more interesting than a basic sub. For easy dinners, look for Isernio’s Al Pastor Pork, a new protein that arrives already seasoned and ready to cook. You can throw it on the grill, into a skillet, or onto a griddle, then pile on pineapple, onions, and cilantro for fast taco night. These are the deli buys to prioritize if you want quick, flavorful meals without much prep while they’re still in stock.

Bakery and Sweets: Sourdough, Taro Cakes, and Malted Crunch

Costco regularly rotates bakery and dessert items, so when limited edition products hit the shelves, you either grab them now or miss them until who-knows-when. The Olive & Rosemary Sourdough is new in the Costco bakery and packed with Kalamata and green olives, plus a hint of rosemary. Shoppers note its soft interior and crisp crust, and it shines with pasta, soup, or a simple dip of olive oil and balsamic. In the snack and sweets aisle, Crystal Taro Cakes come with a soft pastry shell and creamy taro filling that fans say is pleasantly not too sweet, making them an easy afternoon treat. Over in the freezer, Thrifty Chocolate Malted Crunch ice cream arrives in mini cups with little spoons, so they are ready to eat right out of the box and perfect for portion-controlled indulgence.

How to Time These Seasonal Grocery Buys

Costco’s best seasonal grocery buys are fleeting by design: the warehouse constantly brings in end-of-summer and early fall finds, then moves on once they sell through. Members are already being told to shop these items “before the best items are gone,” because these 7 new Costco buys are expected to sell out fast. The smartest move is to scan the bakery, deli, and freezer sections early in the month, then stock up on the limited-time items you know you will finish. Space your trips, too: grab frozen desserts and coffee on one visit, then return for fresh sourdough, pretzel sandwiches, and deli proteins so nothing goes stale. Strategic timing lets you enjoy Magnolia’s Ube Ice Cream, Oreo cheesecakes, the bakery’s Olive & Rosemary Sourdough, and Kirkland Signature coffee before they rotate out and leave you waiting for the next cycle of Costco new arrivals.

Buy if / Skip if

• Buy the Kirkland Signature organic Mexico whole bean coffee if you want a medium-roast with caramel, chocolate, and roasted peanut notes that offers specialty-style flavor at a relative value.
• Skip the Kirkland Signature organic Mexico whole bean coffee if you do not grind whole beans at home or prefer darker, more bitter roasts.
• Buy the Magnolia’s Ube Ice Cream Variety Pack if you want two distinct pints—Jack’ed Ube with purple yam and jackfruit swirl, and Fireside Ube with purple yam and s’mores flavor—for a colorful dessert rotation.
• Skip the Magnolia’s Ube Ice Cream Variety Pack if you dislike yam-based desserts or want more traditional vanilla and chocolate flavors.
• Buy the Oreo cheesecakes if you need 6 mini, rich and creamy desserts topped with real Oreo pieces that are already portioned into individual cups.
• Skip the Oreo cheesecakes if you avoid highly sweet, cookie-heavy treats or prefer full-size cheesecakes you can slice yourself.
• Buy the Pretzel Bun Sandwiches if you want a ready-made meal with seasoned chicken, cheese, lettuce, and mustard mayo on a soft pretzel bun for quick lunches.
• Skip the Pretzel Bun Sandwiches if you prefer to build sandwiches at home or need options without tangy mustard-based sauces.
• Buy the Olive & Rosemary Sourdough if you enjoy bread packed with Kalamata and green olives, a hint of rosemary, and a soft interior with a crisp crust.
• Skip the Olive & Rosemary Sourdough if you want plain white or whole wheat loaves without olives or herb flavors.