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Buying in bulk can lower your grocery bill but only if you choose the right items. Here’s how to tell the difference between smart staples and expensive waste.
By
Paige Cerulli
published
27 March 2026
in Buying Guides
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Buying in bulk can offer valuable savings, helping to combat the continuously rising grocery prices we're facing and helping you spend less on groceries. Understanding what to buy in bulk is key to getting a good deal, though, since bulk buys can backfire and actually cost you more.
When buying in bulk, your total spend on an item might be higher, but you should be paying a lower price per unit. Storage challenges and spoilage risks can eat into your savings, highlighting the importance of careful planning and strategic buys.
Deal psychology can also prompt you to overbuy and overconsume. When you're purchasing grocery items that you don't actually need or wouldn't have otherwise bought, bulk buying isn't actually saving you money — it's costing you more.
These tips can help you make smart purchase decisions to maximize your savings and avoid costly mistakes.
When buying in bulk actually saves you money
Buying in bulk works best in certain situations:
- You use the item regularly: Stock up on items you already buy often. Frequent use lowers the risk of waste and ensures the purchase fits your routine.
- Products have a long shelf life: Bulk buying only works if you can use everything before it spoils. Shelf-stable items give you more flexibility and reduce the risk of waste.
- You have storage space: Make sure you have a cool, dry place to store bulk items. Limited space can lead to spoilage or clutter that offsets savings.
- You have checked the price per unit: Sometimes bulk buys are disguised as a good deal. Compare the price per unit to what you would pay if you bought a single unit of that same item. When buying in bulk, the per-unit price should be significantly lower to justify the purchase.
The best groceries to buy in bulk
You can get the best value by buying certain types of groceries in bulk. Use this list to help focus your shopping.
Swipe to scroll horizontallyCategory
Examples
Why it works
Pantry staples
Rice, pasta, oats, flour, dried beans, lentils
Long shelf life and predictable use make waste unlikely
Shelf-stable proteins
Canned fish, canned beans
High value per serving and minimal spoilage risk
Frozen foods
Frozen vegetables, fruit, meat
Freezing extends shelf life and helps reduce food waste
Household essentials
Paper goods, cleaning supplies
Consistent, repeat usage makes bulk pricing worthwhile
High-rotation items
Coffee, snacks, lunchbox staples (if used regularly)
Frequent use ensures you finish them before quality declines
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The worst groceries to buy in bulk
Certain groceries don't work as well for bulk purchases. Buying these items can cause your savings to quietly disappear.
Swipe to scroll horizontallyCategory
Examples
Why it can cost you more
Perishable foods
Fresh produce, dairy, bread
Spoil quickly unless you freeze or use immediately
Oils, nuts and whole grains
Olive oil, cooking oils, almonds, brown rice
Can go rancid faster than expected, especially in large quantities
Spices and baking ingredients
Spices, baking powder, specialty flours
Lose potency and freshness before you finish them
Condiments and specialty items
Sauces, dressings, niche ingredients
Low usage increases risk of waste
"Aspirational buys"
New snacks, bulk "health" foods, trendy items
Often go unused if they don't fit your regular habits
Hidden costs of bulk buying most shoppers overlook
Many shoppers overlook the hidden costs of bulk buying. These costs can eat away at your savings or even cause you to lose money on bulk buys:
- Food waste: If part of your bulk buy expires or is otherwise damaged, you're throwing money away.
- Storage containers and space: Be sure to budget the cost of food storage containers into your bulk buying strategy. If you're buying frozen goods, you may need to invest in a chest freezer and the electricity needed to power it, which will eat into your savings.
- Membership fees: Warehouse clubs like Costco and Sam's Club sell groceries in bulk, but you'll need to buy an annual membership to take advantage of those savings. Look for membership deals, which often crop up in the summer, to save on the cost.
- Time: Buying in bulk takes time and effort, and your time is valuable. The urge to impulse spend in bulk stores can also be expensive, since you might not be saving as much money as you think you are.
- Price volatility: In today's economy, prices are highly volatile. You might make a bulk purchase, only to find that those prices later drop. Choosing a retailer with a good price match guarantee can help reduce this risk.
Tip: Costco offers a price match if you've bought an item and that item’s price dropped within 30 days of your purchase.
How to bulk buy without wasting money
You can save money by strategically buying in bulk. These tips can help maximize your savings so you're not wasting money on bad buys.
- Compare price per ounce or unit: When deciding what to buy in bulk, compare the price per ounce or per unit to verify that you’re actually getting a good deal.
- Start with a short list: Keep it simple. Focus on items you already use regularly and build your bulk purchases from there.
- Use a freeze or portion system: Freeze what you can to extend shelf life. Portion items like soups and meats before freezing so you can thaw only what you need. Invest in quality, freezer-proof containers so you can easily thaw one or two portions at a time, preventing waste.
- Label and rotate: Clearly label what you buy and use older items first. This applies to pantry and freezer goods and helps prevent forgotten food from going to waste. You can buy food labels that make this process easier to help keep you organized.
- Split bulk purchases: Consider sharing bulk items with family or friends. This reduces upfront costs and makes storage more manageable.
- Avoid shopping when hungry: Hunger can lead to overspending. Studies from the University of Minnesota found that hungry shoppers at a mall spent 64% more money than those who were less hungry, suggesting that hungry shoppers are more likely to buy more than shoppers who aren't hungry. Impulse purchases while buying in bulk can be expensive mistakes, so eat a snack or meal before you shop.
Buying in bulk can be a solid strategy to lower your grocery bill, but approach this technique carefully and gradually. Knowing what to buy in bulk and having a clear plan in place can set you up for success and savings.
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Paige CerulliContributorPaige Cerulli is a freelance journalist and content writer with more than 15 years of experience. She specializes in personal finance, health, and commerce content. Paige majored in English and music performance at Westfield State University and has received numerous awards for her creative nonfiction. Her work has appeared in The U.S. News & World Report, USA Today, GOBankingRates, Top Ten Reviews, TIME Stamped Shopping and more. In her spare time, Paige enjoys horseback riding, photography and playing the flute. Connect with her on LinkedIn.