Do cake mixes go bad

In this brief guide, we will address the query, “do cake mixes go bad?” We will also discuss what is the shelf life of this product and if it is harmful to consume expired cake mixes.

Do cake mixes go bad?

Yes, cake mixes go bad. Although their best-by date is determined to be about 6 months to a year, they are still edible after 4 or 5 months. This might vary depending on the type of cake mix you have acquired.

The good thing about this product is that it has a large shelf life, it can be used even after two years past the best-by date. However, this can be only achieved when proper storage is guaranteed.

Keep reading to find out what is the actual shelf life of cake mixes, also, to determine what signs will let you know when this product is no longer appropriate for human consumption.  

How long do cake mixes last?

Whenever you buy a cake mix you can easily detect the best-by date. You should not take it as expiration date, what the best-by date tells you is when the quality of the product will start to decrease.

So, although the shelf life of cake mixes is determined to be for up to a year, they can safely be used after several months or years have passed. But to accomplish a long shelf life, you need to attend to the guidelines of proper storage.

When cake mixes have expired, they have likely lost most of the raising properties, which will cause any cake prepared with it to be flatter than usual. But this can be fixed by adding a little baking powder.

What happens if you use expired cake mixes?

Well, first of all, when we have reached the point past the best-by date, the quality of the baked cake will not be the usual. So, it is only natural to notice several signs, such as

  • Flat appearance. As time passes, the potency of the raising agent that causes their fluffy texture will decrease. But, this is fixable, adding a pinch of baking powder to the cake mix can make up for the loss.
  • Allergic reaction to mold. Expired cake mixes might exhibit mold growing on their surface, some people are allergic to it, which can cause severe symptoms, and in some cases, it has been even lethal.
  • Flavor and smell can also be affected. Cake mixes cannot keep their properties forever, and past their best-by date, they will start to decay.

How to tell if a cake mix has gone bad?

When cake mixes have gone bad, certain signs will help you to detect them. Make sure you check for all of these signs before using a stored cake mix.

  • Mold on the surface. When exposed to humidity, the cake mix will develop mold. If that is the case, it is better to throw away the whole package. Mold can cause severe damage to people’s health. You can read more about this subject, here.
  • Off smell. Taking a quick sniff of the cake mix will let you know if it is still good to be used.
  • Pantry insects. Pantry insects are persistent and even when packaged, they will find their way. Discard the mix if that is the case, also, check for any other product that could be infested with these creatures.
  • Weird taste. When the cake mix has spoiled, most of its organoleptic features will be altered, like their flavor.

How to store cake mixes?

If you want to keep the quality of your cake mix for the longest time possible, you need to follow certain recommendations, such as

  • Keep them inside their original container. It has been designed to preserve the quality of cake mixes.
  • Store them in a cool, dry pantry. When exposed to heat and humidity, the quality of the product will be lost quickly. Also, mold growth is boosted by humidity.
  • Avoid fluctuating temperature. When temperature drastically changes, cake mix can go bad.
  • Once opened, make sure you seal the store leftovers. This will protect the product from agents that cause mold growth.
  • Use an airtight container to store the leftovers. Although cake mix leftovers can be kept in their original container, if it has been damaged, they should be placed inside a container that protects them from humidity.

Make sure you check for all of these recommendations, I’ll ensure that whenever you want to reuse a certain cake mix that was stored properly, the results will shock you!

Other FAQs about Cake that you may be interested in.

Can you eat cake batter without eggs?

Can you freeze an iced cake?

Can you freeze angel food cake?

Do cake mixes go bad


In this brief guide, we have addressed the query, “do cake mixes go bad?” We have also discussed other queries related to the subject at hand. 

Hope you found this blog useful. If you have any questions, please let us know.


Hi, I am Charlotte, I love cooking and in my previous life, I was a chef. I bring some of my experience to the recipes on this hub and answer your food questions.