How Long Can Brownie Mix Sit Out?

How Long Can Brownie Mix Sit Out

If you enjoy baking, one of the foods that are popular is brownies. Before you can bake any brownies, you will need to mix the batter first. After making the brownie mix, some people will leave them sitting on the countertop for a while. This will make you wonder how long can brownie mix sit out.

How Long Can Brownie Mix Sit Out?

Brownie mix should only be stored at room temperature for no longer than 2 hours. After that, it could become contaminated with bacteria and no longer safe to eat. If you’re planning on baking brownies soon after buying the mix, then you can store the mix in your pantry until then. If you’re planning on baking brownies later on in the day or week, put the mix in the refrigerator.

Why Does Brownie Mix Go Bad So Quickly?

Brownie mix is a highly perishable food. It’s made with all the things that make cookies delicious: flour, sugar, leavening agents, and oil. However, brownie mix goes bad quickly if it’s not stored properly. You can keep your brownie mix from going bad by following these tips:

  • Store in an airtight container on the counter for 2-3 days or in the fridge for up to 1 week.

  • If you have leftover brownie mix that you want to save for later use or give away as gifts, wrap it tightly with plastic wrap or foil and store it in an airtight container in the freezer for up to 6 months at 0 degrees F (32 degrees C).

How Can You Tell If Brownie Mix Is Spoiled?

Brownie mix can spoil when left out for long periods of time.

The first thing you need to do is check the packaging of your brownie mix. If there is any discoloration on the box or bag, then throw it away immediately. Also, if there is any leakage from the package, then you should also throw it out immediately because mold grows quickly in moist environments like this one.

If there is no discoloration on your package, then check the ingredients list on your recipe’s box or bag. This will tell you exactly how long your brownie mix will keep before spoiling so that you don’t waste money by using it past its expiration date.

Storing Brownie Mix At Room Temperature

If you’re planning to leave your brownie mix out on the counter, keep it in the original container. If you have a glass pyrex casserole dish, consider leaving your brownie mix in that instead. It will help keep the moisture from evaporating and make sure that no bugs come into contact with it.

If there is any condensation on top of the container or contents when you open it, wipe it off with a paper towel before closing it again.

If you’re not planning to use the brownie mix after 2 hours, it’s best to store them in the fridge to prevent bacteria growth.

Is It Safe To Eat Brownie Mix That Was Left Out Overnight?

If you have left your brownie mix out overnight, it is best not to eat it. Since it’s been sitting for more than 2 hours at room temperature, it will likely be spoiled due to the presence of bacteria in the mix.

While cooking the brownie batter will kill the harmful bacteria, and the texture and taste of the brownie have already deteriorated.

How Long Can You Store Brownie Mix In The Fridge?

Storing brownie mix in the fridge is a great way to save time and money because it allows you to bake brownies whenever you want them.

Brownie mix can be stored in an airtight container for up to two weeks in the refrigerator. For longer storage, freeze them in an airtight container for up to six months.

How To Store Brownie Mix In The Refrigerator

To store the brownie mix in the refrigerator, place it in an airtight container or resealable plastic bag with all of its ingredients (including eggs) included.

You may also want to add a piece of paper towel or napkin to absorb any extra moisture that may form on top of your brownie batter. With these measures taken, there shouldn’t be any problems with your brownie mix spoiling in your refrigerator!

Can You Eat a Brownie From Mix That’s Expired?

Brownie mix that’s expired can be dangerous to eat.

When you purchase a brownie mix, you expect it to keep for at least a few weeks. But if you’ve had the box for more than two months, there’s a chance that your brownies could make you sick if they’re not thrown away immediately. Why?

The answer is simple: food poisoning from expired brownie mix is possible when bacteria grow in the batter and then spread into your body when consumed by humans or animals (including pets). This bacteria can cause some serious health problems like vomiting, diarrhea, and fever—and even death in some rare cases!

Can You Freeze Brownie Mix to Make It Last Longer?

If you want to make your brownie mix last longer, the best option is to freeze it in an airtight container. This will keep the mix fresher for up to 6 months, though it’s always good to use your own judgment as far as when this is no longer safe.

Make sure you label the container clearly with the contents and date before freezing it so that you know exactly how old it is when thawed out later on.

Thawing can be done overnight in the fridge or at room temperature for several hours prior to use.


I hope this post helped you learn more about brownie mix and how long it last if you have them sitting out. Just remember to store the batter in the fridge if you’re not planning to use it within 2 hours.