40 of the Worst Products to Buy at Costco

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So many products at Costco seem like a good idea, but then you get home and wonder what on Earth you’re going to do with them. There’s nothing wrong with the items per se. It’s just that there are often better ways to spend your money. Some of the items can be very unhealthy while others simply come in quantities that are too large for many households. 

Before you find yourself strolling through Costco thinking, “I’m sure it won’t hurt to stock up,” we want to share with you some of the bulk products that are unhealthy or not worth your money. They may be cheap and convenient, but these items take up a lot of space and might even cost you more in the long run. By the end of the article, you’ll have all the inside information you need to make better decisions next time you go to Costco.  

Bread and Pastry Products

Let’s start with some breakfast favorites – bread and pastries. Some shoppers in Costco love to buy bread in bulk to save money per unit. However, if you only have two to three members in your household, buying in a small retail store is still best. 

Bread only lasts a few days, so when you buy in bulk, there’s a tendency for this product to get stale or moldy before you can consume it. Having large quantities can also push you into overeating, which can contribute to obesity, heart disease, and diabetes.

Mayonnaise and Other Condiments

While the thought of saving money is exciting, you still need to consider the longevity of the products. Buying gallons or boxes of mayonnaise is not a wise choice.  Why? Store-bought mayonnaise only lasts a month if unopened. 

Unless you have a large, mayonnaise-loving family, these huge jars are likely to expire before you can get even halfway through. Furthermore, eating too much mayonnaise can lead to health problems such as high blood pressure and a rise in blood sugar. If you want to gain some weight, eating mayonnaise every day can help you!

Packs of Soda

Costco’s prices on soda are indeed competitive with those of grocery stores. However, soda from a regular supermarket usually costs $2.50 for a 12-pack when it’s on sale, while at Costco, it cost 10$ for a 36-pack.

Clearly, soda can be cheaper in grocery stores than in Costco if you keep an eye out for sales. So, if you want to save money, it’s better to stock up whenever you see those sales. It’s also worth keeping in mind that too much soda is not healthy.

Giant Trays of Eggs

Once again, unless you’re buying for a large family, it’s not the greatest idea to purchase 3-5 dozen eggs at a time. Eggs have expiration dates, and they will go bad before you can use the whole carton. 

The longer an egg is stored, the more its quality declines, and this makes it less springy and runny. Eggs don’t last long, even when refrigerated, and the last thing you want is to be at risk of them going rotten. If you’ve ever cracked open a bad one, you’ll know the smell alone can put you off eggs for life. 

Bacon Crumbles

Bacon crumbles add a blast of flavor to breakfast dishes, salads, and baked potatoes, but they aren’t very healthy. Still, for many people, bacon is synonymous with breakfast. Tasty though it may be, this product contains approximately 2 grams of fat per tablespoon and a high amount of salt.

If you want a healthier option, try buying uncured bacon because it doesn’t contain too much sodium nitrate. Cured or uncured, bacon will never be healthy to eat on a daily basis as it still packs a big punch of fat and salt that can increase the risk of heart disease. If you love it, your best bet is to enjoy it in moderation.

Baby Diapers

While this can be a good option for some parents, there are some caveats. Never bulk buy diapers until you’ve tried the brand first with a smaller packet. That way, if your child develops a rash, you won’t have a mountain of unusable diapers. It’s also important to be mindful of your child’s growth so you don’t stock up on one size just as they need to transition to the next size up.

If you’re a new parent who has been running to the store every other week for diapers, then a good option is to buy in bulk. Purchasing diapers in bulk saves time because you can find them all in one place. You don’t have to go out hunting for diaper discounts that may or may not be a good deal in the end.

Gallons of Cooking Oil

Cooking oils can be derived from a number of plant sources and are used in a variety of dishes, including our favorite fried, deep-fried, and sautéed delights. According to studies, you can only keep olive or vegetable oil in the pantry for four months. This means it is not a good move to buy gallons of cooking oil at a time.

Buying gallons of olive oil can be wasteful and costly as it goes stale fast, especially if it isn’t stored in the ideal environment. Purchasing smaller amounts and using up every drop in the bottle before buying another is still an efficient way to save money. Leave the gallon bottles for businesses and big families. 

Fresh Fruit

Fresh fruit is always on our grocery list. Regardless of your favorite kind, fruit is an excellent source of essential vitamins, minerals, and high fiber. That’s why people love buying fresh fruit in bulk at Costco because they think they can save money while boosting their health.

However, buying too much often ends up being wasteful and expensive as you cannot store fruit for long periods before it goes bad. In fact, most products bought end up getting thrown out, which equates to about 25% of your purchase going in the trash! Only buy in bulk what you can freeze in bulk and use in smoothies.