Can you use baking soda after it has been in the fridge?

In this article, we will answer the question “Can you use baking soda after it has been in the fridge?”, and how to make baking powder at home?

Can you use baking soda after it has been in the fridge?

Yes, you can use baking soda after it has been in the fridge. This only applies if it was stored correctly. To do a potency test for the refrigerated baking soda, 1/2 teaspoon of white vinegar to one cup of hot water. 

Then dissolve ½ teaspoon of baking soda in the vinegar-water mixture. If the solution bubbles, the baking soda is good to use. If not, there are plenty of household uses of baking soda.

Household uses of baking soda


Baking soda has antimicrobial properties that can be benefited from by using baking soda as a mouthwash. Baking soda mouthwash improves oral hygiene by increasing the ph of the saliva that keeps the bacteria at bay. 

To make the baking soda mouthwash, mix ½ teaspoon (2 grams) of baking soda in half a glass (120 mL) of warm water.

Teeth whitener 

Bacteria have an abrasive texture and excellent antimicrobial properties. Due to which it can help de-stain your teeth by weakening the bonding between the staining molecules. 

Therefore, toothpaste with added baking soda is very effective at teeth whitening and removing plaque from teeth.


Sweat does not have an odor of its own. Sweat only absorbs the odor when the bacteria residing in your armpits break down your sweat into acidic waste products. 

To make a homemade deodorant using baking soda, mix some baking soda in coconut oil, shea butter, or cornstarch and apply it to your armpits.

Fridge door neutralizer 

The smell of spoiled food lingers for quite a long time even after you have cleaned up the mess. This is where baking soda comes in handy. Baking soda neutralizes the stinky odors in your fridge by eliminating the bad odor particles. 

Air freshener 

Most air fresheners simply release fragrance into the air and do not eliminate the bad odor particles. The problem remains after the air freshener wears off.

Moreover, most of the air freshener bottles do not even have an ingredient list. Instead of using a chemical spray of the contents of which you are unaware, you can make your DIY air freshener.

To make a baking soda air freshener, grab a small jar. Add 1/3 cup (74 grams) of baking soda, and 10–15 drops of your favorite essential oils in the jar. 

Drape the jar with a piece of cloth or paper and secure it in place with a string. Place the jar in any area in your house that needs to be deodorized. 

Whitening agent for laundry 

Baking soda is an alkaline, soluble salt. Therefore, it can perform de-staining by reacting the acids in the stain when dissolved in water. This makes baking soda the ideal candidate as a laundry whitener.

To make a baking soda laundry whitener, ½ cup (110 grams) of baking soda to your regular amount of laundry detergent, and you are done. You will need less detergent if you use this DIY baking soda laundry whitener. Because baking soda softens the water. 

Kitchen cleaner 

When mixed with an acid such as lemon or lime juice, baking soda can be used as a kitchen cleaner. Mix the baking soda in lemon juice to make a thick paste and scrub the dirty kitchen areas with this paste. 

You can use this paste to clean ovens, stained coffee cups, stained marble, greased stains, kitchen tiles, clogged drains, tarnished silver, microwaves, and countertops.

Garbage odor eliminator 

Garbage odors can be very stinky when they are full f trash. The smell from the trash even spread to your kitchen and living room which can be very unpleasant. 

Baking soda has excellent de-odorizing properties that can be employed to get rid of a sticky pile of garbage. Just sprinkle the baking soda at the bottom of the garbage cans or trashcans. Then wait for baking soda to do its magic.

Carpet stain remover 

When mixed with vinegar, baking soda produces carbonic acid; a popular ingredient in most commercial cleaning products. To clean the most stubborn stains from your carpet, use a vinegar and baking soda mixture.

Sprinkle the carpet stain with baking soda. Then spray the stained area with a mixture of vinegar water(1:1). Wait for about an hour or until the area dries. 

Scrub off the baking soda and vacuum the carpet to get rid of the baking soda particles. The stain should be removed. If not, repeat this process until you achieve the desired results.

Homemade baking powder recipe


  • 30 grams baking soda
  • 70 grams cream of tartar
  • 15 grams cornstarch


  1. In a small mixing bowl, combine all the ingredients until homogenous. 
  2. Pour the baking powder into a mason jar with a tight lid.


In this article, we answered the question “Can you use baking soda after it has been in the fridge?”, and how to make baking powder at home?


Hello, I'm Sana Ameer. I'm a student of Food Science and Technology at UVAS. I like to bake and I aspire to become a Food blogger.