Costco is one of those stores where it’s easy to get carried away with bulk deals. The packages are bigger, the unit prices often look better, and it’s tempting to add something to your cart just because the savings seem too good to pass up.
But buying more doesn’t always mean spending less. A large package only saves money if you can use everything before it spoils, loses its flavor, or sits forgotten in a cupboard.
I’ve learned that some Costco purchases are better in smaller quantities, especially for households that don’t go through certain products very quickly. These are 14 things I think twice about buying in bulk, even when the price looks good.
Bread
Buying several loaves of bread at once sounds like a good deal until you realize how quickly bread can go stale. If your household only finishes one loaf every week or two, the extras may end up going to waste.
Freezing bread is an option, but the texture may change after thawing. Larger packages make more sense for big families or people who eat bread every day, while smaller households may be better off buying one loaf at a time.
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Milk
Milk can sit in the refrigerator longer than expected, especially if you buy more than your household can finish. A multi-pack might cost less per container, but those savings disappear if you end up pouring expired milk down the drain.
Opened milk can also spoil faster than an unopened container. If your family drinks several cartons quickly, bulk buying may work, but smaller containers are often a better choice for households that use milk occasionally.
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Cooking Oil
A huge bottle of cooking oil can look like a bargain, especially when the price per ounce is much lower. But oil doesn’t stay fresh forever, and a large container can sit in the pantry for months if you only cook occasionally.
I prefer buying an amount I know I’ll use within a reasonable period. Storing oil in a dark glass oil dispenser bottle can also help limit its exposure to light and air.
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Fresh Produce
Fresh produce is one of the easiest things to overbuy at Costco. A giant container of berries, several pounds of salad greens, or a large bag of vegetables may look like a healthy purchase, but it can be difficult to finish everything before it spoils.
Unless you have a large family, prepare meals in advance, or share groceries with someone else, smaller portions may be the better choice. I’d rather pay a little more for produce I know I’ll eat than save a few dollars on food that ends up in the trash.
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Eggs
Eggs last for quite a while in the refrigerator, but that doesn’t mean every household needs a giant carton. If you make eggs for breakfast or bake regularly, a large package may be easy to finish.
For households that only use a few eggs each week, a smaller carton is often more practical. There’s little reason to fill the refrigerator with more than you can reasonably use.
Skincare and Beauty Products
Multipacks of skincare and beauty products can be tempting, especially if they’re items you already like. The problem is that many products have a limited period of good quality after opening.
Mascara, foundation, creams, and other personal-care products can sit unused for months while you finish the first container. I’d rather buy one product at a time than end up with several backups I may not get around to using.
Spices and Dried Herbs
Spices and dried herbs can lose their flavor and aroma as they sit in the pantry. That oversized container of paprika or oregano may save money at checkout, but it’s a poor deal if it takes years to finish.
I usually buy smaller containers, especially for seasonings I only use occasionally. Keeping them in airtight spice jars with labels also makes it easier to see what I have and how much is left.
Cheese
Large packages of cheese can be a good buy for families that make sandwiches, cook regularly, or go through cheese quickly. For smaller households, the package may develop mold before there’s a chance to finish it.
Buying smaller portions may cost a little more per ounce, but it can prevent perfectly good food from going to waste. I’d rather buy what I need for the week than keep throwing away cheese I couldn’t finish.
Condiments
Ketchup, mayonnaise, mustard, and salad dressing can take up space in the refrigerator for months. Buying the biggest bottle may seem like a smart way to save, but it only makes sense if your household uses those condiments regularly.
If everyone puts ketchup on nearly every meal, a large bottle probably won’t last long. For occasional use, a smaller container is easier to finish before its quality declines.
Brown Rice
Brown rice has a shorter storage life than white rice because it contains more natural oils. A large bag may look like a good pantry purchase, but it can lose freshness before you get through it if you rarely cook with it.
I’d rather buy a smaller bag and replace it as needed, especially if brown rice isn’t something my household eats several times a week. That way, there’s less chance of an oversized bag sitting untouched in the pantry.
Flour
Flour is easy to overbuy, particularly if you only bake once in a while. A large bag makes sense for someone who regularly bakes bread, cakes, and cookies, but occasional bakers may take months to use it all.
Flour can absorb moisture and odors, and poor storage can also attract pantry pests. I prefer buying a smaller bag that I can finish while it’s still in good condition.
Ground Coffee
People who drink coffee every morning may have no trouble finishing a large container. For anyone who only makes coffee now and then, a bulk package can sit around long enough for its aroma and flavor to fade.
Ground coffee gradually loses freshness after opening, so a lower price per serving doesn’t always make it a better buy. If you care about how your coffee tastes, smaller packages may be worth the extra cost.
Soda and Carbonated Drinks
Buying soda in bulk makes sense if your household goes through it quickly. If everyone only drinks it occasionally, those cans and bottles may sit around for months.
Carbonated drinks can lose some of their fizz over time, leaving them less enjoyable than when they were first purchased. Before grabbing the biggest case at Costco, think about how quickly your family actually drinks it.
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Liquid Bleach
Liquid bleach is another product people sometimes buy in large quantities because they assume it will last forever. In reality, bleach gradually loses its strength while sitting in storage.
If you only use it occasionally, buying several large bottles may leave you with more than you can use while it’s still effective. A smaller bottle is often the more practical purchase for households that don’t use bleach regularly.
Think About How Fast You’ll Use It
Costco has plenty of good deals, but the lowest price per unit doesn’t always mean you’re getting the best value. Before putting a giant package in your cart, ask yourself one question: Will I use all of this before it spoils, loses quality, or gets forgotten in the pantry?
If the answer is no, it’s probably better to leave it on the shelf. A smaller package may cost a little more upfront, but avoiding wasted food and unused household products can save money over time.
