Grocery prices keep climbing in 2026, and no single store wins on every item. But knowing which store beats the competition on specific staples can save you serious money over the course of a year. Tasting Table did the legwork — comparing 15 everyday essentials across Aldi, Costco, Trader Joe’s, and Walmart — and the results are genuinely useful for anyone trying to stretch a grocery budget.
Aldi Wins on Everyday Staples
Aldi comes out on top for most basic grocery staples. A gallon of whole milk is just $2.89 (vs. $5.99 for 64 oz at Trader Joe’s). Sliced white bread is $1.45 — a full dollar cheaper than Trader Joe’s. Eggs are $1.47 a dozen, nearly matching Walmart’s rock-bottom price of $1.44. Canned black beans, salt, canned tuna — Aldi is consistently at or near the bottom on price. If you’re stocking a pantry with essentials, Aldi is almost always your best bet.
Consumer Reports data shows Aldi prices are even lower than Walmart’s overall — a remarkable achievement for a store with a fraction of Walmart’s footprint.
Costco Wins When You Buy in Bulk
Costco’s strength is volume. Canola oil works out to just $3.25 per 48 oz when you buy the 192-oz jug — cheaper per ounce than Aldi or Walmart. Jasmine rice is $1.00/lb when you buy the 25-lb bag. Salad mix is $0.28/oz — by far the cheapest of the four stores. The catch is obvious: you have to use it all before it goes bad. But for households that go through staples quickly, or anyone who meal preps, Costco bulk buys are hard to beat on per-unit cost.
Trader Joe’s: Worth It for Specialty Items, Not Basics
Trader Joe’s has the highest prices on most everyday basics — eggs ($5.99/dozen), milk (more than $5.99 for 64 oz), olive oil ($8.49 for 16.9 oz). Where it justifies the premium is uniqueness: their seasonal and specialty finds you simply can’t get elsewhere. Products like the $5.99 Sheepish Tomato cheese or their rotating international items are genuinely one-of-a-kind. Go to TJ’s for those. Go to Aldi or Walmart for your eggs and milk.
The Smart Strategy: Split Your Shopping
The real takeaway here isn’t “only shop at one store.” It’s the opposite. Savvy grocery shoppers split their trips strategically: Aldi for staples like milk, bread, eggs, beans, and canned goods; Costco for bulk buys on items you use constantly (oil, rice, salad greens, paper products); and Trader Joe’s for seasonal specialties and the products no one else carries. Walmart fills any gaps. This is the same philosophy we use when covering the best Costco and Aldi finds each week — price matters, but so does knowing when a splurge is genuinely worth it.
Where do you do most of your grocery shopping, and what’s your go-to hack for saving money on staples? Drop it in the comments — we’d love to hear what’s working for your household!
