Costco’s moldy bagel problem

food breakfast fork bagel

Photo by Jaymantri on

Do you like bagels? That’s a silly question, right? I mean, as long as you aren’t gluten intolerant you probably like a bagel now and again.

Costco makes pretty good bagels, but then Costco has a real bagel problem too.

When you buy bagels at Costco you get a dozen bagels for $5.99 (or something like that). You pick two sleeves of six bagels, in your favorite flavor, and off you go. The problem with the bagels is they don’t keep long, not long at all.

If you want a bagel for breakfast you better have put them in the freezer and defrost one each day. The reason being is that if you leave the bagels out on the counter for more than two days, they get moldy. I mean like REALLY fast! Day three will likely find them with mold and you aren’t gonna want to eat that. It really is a problem as I have wasted my fair share of bagels over the years and I wonder if Costco even cares.

Anyone else experience this problem of nearly instantly moldy bagels?


  1. Jack · April 14, 2019

    I’m surprised my comment is the first in 9 months. I’ve heard if planned obsolescence but Costco bagels take the cake. Yes. Mold everywhere in 3 days. They need to add a punch of sourdough and it’ll keep for a long time.


    • backuphill · April 14, 2019

      It is a little surprising you are the first, considering the number of looks the post gets. I guess people just don’t care that much.


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  3. Natasha Peak · June 6, 2020

    I have some where sell by date way yesterday. I bought them day before and put them in fridge. Will they last a few days at least?


    • backuphill · June 6, 2020

      Hard to say. The fridge may help slow it down, but in my experience it isn’t by much. You are better off to freeze what you don’t think you will eat right away. If not freezing them, I’d advise checking them before eating them. Good luck!


  4. Gg · July 3, 2020

    I work at a grocery store and I bake bread all day! The bagels from Costco probably have no preservatives in them, especially if they are baked on site. No preservatives is a GOOD thing! THATS WHY THEY TASTE SO GOOD! Look at the ingredient label! Preservatives are the items on the ingredient list that you couldnt pronounce if you tried and they are usually at the end of the list. Baked breads that come to your grocery store on a HUGE truck every day are mass produced and last forever without molding because they are LOADED with preservatives! When you get your bagels home immediately seperate what you arent going to eat in 2 days and bag individually or in bags of 2 and freeze them. They thaw in an hour or so and will be just like the day you bought them.


    • backuphill · July 4, 2020

      Yes, this all may be true, but I have purchased fresh bagels (as in they are still warm when I bagged them) from a local grocery store and they didn’t mold nearly as quickly as Costco’s.

      Oh, and Costco’s bagels don’t taste that good. I was more about the supposed value of quantity versus price. But if they mold so fast, the value isn’t there.

      Either way, whether you buy them from a grocery store fresh, mass produced and bagged, or from Costco…separating and freezing is likely the best way to make sure they don’t go bad before you use them.


  5. Kirstin Moran · September 8, 2020

    Yep, even with my family of 8, we couldn’t get through them quickly enough before they got moldy. I finally got tired of wasting my money and quit buying them at Costco.


    • backuphill · September 8, 2020

      If you have freezer space, splitting them up into individual bags (like sandwich bags) works pretty well but most people don’t have that kind of room in their freezer.


  6. Mecca · October 14, 2020

    I just bought bagels at costco for the first time (ive been buying that other stuff for a while). I wanted to try their water boiled parmesan bagels. I split them w my sister and then we split the flavors. I ate one bagel before i started to see mold. But they were so good that i just cut the mold and kept eating the rest. Next time i buy them ill make sure to freeze what i dont eat so they dont go bad. I think they taste delicious! Two more moldy bagels to go! Lol


    • backuphill · October 14, 2020

      Glad you noticed the mold before you continued to eat! There are ways around the mold, but if not careful you could find yourself with a tummy ache. LOL


  7. Denise · October 19, 2021

    Yes! I thought it was just a fluke as I rarely buy them. I had even stopped buying them for a while but last week my step daughter grabbed some (as we have been without a kitchen for 4 months) and 2 days later, mold. I keep my house the temperature of a yeti cooler, so heat is not an issue.


    • backuphill · October 20, 2021

      Sorry to hear that. We mostly buy bagels someplace else, but for whenever we do (whether Costco or other) we always slice and freeze them. They just last longer that way. Unfortunately, it also means you have to plan ahead a little if you want one.


  8. Sophal Heng · November 2, 2021

    Ironically I was looking for reasons why my bagel is getting so moldy while sitting in my cabinet and I came across this post. I also purchased bagels from Costco and they went bad really quick. Not just bad. The bagels were drenched with mold and the bag was wet. Gross. Now I have to pinesol my kitchen cabinet


    • backuphill · November 2, 2021

      EWWW! Yeah, there is something about those bagels that just don’t last. Two days, maybe three, before they show signs of mold when not kept in the fridge.


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