Shelf Life

Does Molasses Go Bad?

Have you just opened a jar of molasses and you’re wondering if it has gone bad?

You may have read conflicting info online, so let us help clear the air.

Molasses is an amazing ingredient that can last for a year. But with proper storage guidelines, your molasses will stay fresh and full of flavor.

Learning how to keep your molasses from going bad isn’t difficult. So why waste ingredients or money on something that’s too old to use? Also, explore effective tips to store Crisco for longer.

Keep reading for our top tips on does molasses go bad. Also, get the most out of this vibrant ingredient.

How Long Does Molasses Last?

Molasses is a thick syrup that can last a long time if stored correctly!

Unopened, it will keep for up to one year at room temperature. Once you open a jar of molasses, it won’t last very long. You should use it within 6 months.

It is important to keep molasses in a container that seals tight. Keep the jar away from heat and light, like in a cupboard or pantry.

You don’t need to put unopened molasses in the fridge. But you can refrigerate opened molasses if you wish. This will help keep the molasses fresh for longer. 

ConditionShelf Life (At Room Temperature)
Unopened1 Year
Opened6 Months
Quick Info

How To Know If Molasses Has Gone Bad?


How To Know If Molasses Has Gone Bad? | Epic Nutrition

Molasses is a thick, sweet liquid. It is made from sugar that comes from sugarcane or sugar beets. People can use it in baking and making sauces.

As with most food, molasses has a shelf and can spoil if not stored. To tell if molasses has gone bad, look for signs of mold.

Mold on molasses looks like fuzzy stuff. It can be green, blue, black, or pink. If you see mold, get rid of the molasses.


Molasses should smell sweet. If it smells sour or off, get rid of it.


Taste Molasses  | Epic Nutrition

The first and likely most reliable test is to check the taste. Take a small spoonful of molasses and sample it.

If it tastes bad or smells weird, throw it away right away. That means it has gone bad.


Good molasses should have a thick consistency and be easy to pour out of the container.

If the molasses looks like water is separating, or if it has become thin and runny, it has gone bad.

Expiry Date

It is always a good idea to check the expiry date on the container. If it has expired, try not to use it.

You can do simple tests to check if your molasses is still good. Doing this will help keep you safe and healthy.

How To Store Molasses Long Term?

Storing molasses long-term is an important skill to have. This sweet syrup can be used in baking, and stir-fries.

But without proper storage techniques, it will spoil quickly.

Here’s how to store molasses long-term so that you can enjoy it!

  • To store molasses long-term, buy it in smaller quantities. Storing a large amount of molasses can be hard to manage.
  • Molasses should always be stored in an airtight container or jar. Glass jars are better than plastic containers because they keep air out better.
  • Make sure the jar is completely sealed before storing it. This will help keep oxygen and moisture out, both of which can cause spoilage.
  • Store molasses at room temperature and in a dark place. Heat and sunlight can make molasses go bad faster. Keep molasses away from heat and light so it stays good.
  • Molasses can last for up to one year when stored properly.

If you follow these storage tips, your molasses will stay yummy and fresh for a longer time. Enjoy!

Also, explore the hidden secrets and proven practices that guarantee successful canola oil storage, preserving its quality and taste.

Types of Molasses

Dark Molasses

Dark Molasses  | Epic Nutrition

Dark Molasses is made from sugar cane juice. The juice is boiled twice during the process of making it into molasses.

This flavor is strong and a bit bitter. It is not usually used in cooking or baking. Dark molasses has more minerals than light molasses.

Light Molasses

Light Molasses comes from sugar cane juice that has been boiled only one time.

This type of molasses has a milder taste than dark or blackstrap molasses. It also does not have as many minerals. It is often used in baking cakes, cookies, and other desserts.

Blackstrap Molasses

Blackstrap Molasses is made from sugar cane juice. The juice is boiled three times to make it into molasses.

This type has a very strong and somewhat bitter taste. It contains more minerals than light or dark molasses. 

Use only a little bit of it because too much will make other flavors taste bad. It can also be used in some salty dishes, like barbecue sauce.

When choosing a kind of molasses, think about the recipe you are using, and how it will taste. Also the health benefits.

All three types offer different tastes and nutritional value. So it’s worth experimenting to find the one that suits your taste and needs the best.

Do Molasses Need To Be Refrigerated?

Once you open a bottle of molasses, you do not need to put it in the fridge.

Molasses stays good for a long time. You don’t need to put it in the fridge or freezer. It can stay at room temperature.

It is important to know that molasses will become hard over time as the water evaporates from it. This can change the thickness of the liquid and make it hard to pour or use in baking.

If an item is exposed to high and low temperatures too often, it can cause germs to grow on it and make it bad.

It is best to keep it in a cool and dry place like a pantry or cupboard. This will help keep the food from going bad.

Can We Freeze Molasses?

Can We Freeze Molasses? | Epic Nutrition

You can freeze molasses like you can freeze any food. But this is not a good way to store it.

Cold temperatures can make the molasses thicker. If it is frozen and then thawed, there might be mold growing in it.

Molasses can last for up to a year in the pantry. You don’t need to freeze it to make it last longer.

If you want to freeze the product, put it in a container with an airtight lid that is safe for a freezer.

Put the product in the container, but don’t fill it all the way. Put on a lid that keeps air out. Write the date on it and put it in the freezer.

Can Molasses Make You Sick?

Molasses is okay to eat, but don’t eat too much.

Molasses is a good substitute for sugar. But eating too much of it or any other kind of added sugar can be bad for your health. People with diabetes should be even more careful.

Molasses is made through a process called fermentation. Eating too much can cause digestive issues like diarrhea or loose stools.

If you have irritable bowel syndrome or a stomach problem, it is best to not take this syrup.

Can Expired Molasses Make You Sick?

Old molasses might not make you sick, but it may not taste or feel very good. To get the best out of molasses, use it within one year after opening the container.

If you store molasses at a temperature below 50°F, it can become a solid over time. This is called crystallization and is normal. You can still eat the molasses but it may not work well in recipes.

If your molasses becomes hard, you can put it in the microwave for 30 seconds to make it liquid again. Do this until the molasses is soft.

Look at the package to see how to store the molasses. Throw it away if it smells bad or tastes bad.

Amazing Molasses Benefits

What To Do With Old Molasses?

If you bought molasses, it might be for a cake, pancakes, or just because you wanted to try it.

You used the bottle a couple of times but now it’s just sitting in storage. You don’t want to throw it away. Also, you don’t want it staying there for another year or two either.

You want an easy way to use it.

If you have light or dark molasses, you can use it instead of sugar. You can also make brown sugar with it.

To make brown sugar, add 2 to 4 tablespoons of molasses for every 1 cup of white sugar. You don’t need to mix them first. You can mix them with other ingredients.

Adding different amounts of molasses to sugar will change the color. It can be light brown, dark brown, or something in between.


Does blackstrap molasses go bad?

The most popular type of this product is thick and dark. It can last in your cupboard for at least one year, or up to two years if unopened. Once you open it, use it for six months.

Does unsulfured molasses go bad?

Unsulfured molasses does not have a special ingredient that helps it last longer. You should try to use it within 6 months of buying it. If you open the bottle, put it in the fridge instead of on the shelf like other types of molasses.

Does pomegranate molasses go bad?

Pomegranate molasses has an expiration date. Make sure to check it before you eat it. Some brands can last up to two years, but most will only last between 6 months and 1 year from when you buy it.

Does Molasses Go Bad? | Final Verdict

Molasses is a great way to make food sweet and tasty. If you keep it in the right place, it will stay good for a long time.

Remember that molasses may not taste or look the same over time, but it will still be safe to eat.

There are different kinds of molasses and they all taste a little bit different. You can choose light, dark, or blackstrap molasses depending on how sweet you want it to be.

The type you pick also affects how long it will last and what vitamins and minerals it has.

Make sure to keep your product in a container with a lid that seals properly. Keep it at room temperature or slightly cooler. If it gets too cold, it can become hard and unusable.

Do not freeze molasses. If you do, the molasses will turn into crystals.

Now you know how long molasses lasts and how to store it. You don’t need to worry if your favorite condiment has gone bad!

Dr. Renata Micha

Meet Dr. Renata Micha, a wellness and nutrition expert passionate about helping people live healthier lives through good nutrition. With a diverse academic background in human nutrition and dietetics, she holds a Ph.D. and has worked in various institutes across the US.

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