Does Maple Syrup Go Bad | Damaged Maple Syrup Signs

Have you ever opened a bottle of maple syrup to find that its consistency has unexpectedly changed? Does maple syrup go bad? Well, the good news is – yes, maple syrup can definitely last quite some time when stored correctly. In this blog post we will discuss all things related to maple syrup: from how long it usually lasts and how best to store it, right down to what happens when it goes bad. So let’s dive in and explore everything there is to know about our beloved natural sweetener – Maple Syrup.

What Is Maple Syrup? 

What Is Maple Syrup? 

Maple syrup is a natural sweetener made from the sap of maple trees. It has been used for centuries by Indigenous peoples in North America, and is now commonly produced in Canada and the United States. Maple syrup comes in different grades, ranging from light amber to dark brown, with each grade having its own unique taste profile. The production process involves tapping maple trees during the spring, and then boiling down the sap to concentrate the sugars and create the thick and delicious syrup we know and love.

Health Benefits Of Consuming Maple Syrup 

Here are some of the potential health benefits of consuming maple syrup:

  • It contains antioxidants that can help protect against free radicals and reduce inflammation.
  • Maple syrup is a natural source of minerals such as zinc, calcium, potassium, and magnesium.
  • It has a lower glycemic index compared to refined sugars, making it a more suitable option for individuals with diabetes or those watching their blood sugar levels.
  • Pure maple syrup is free from additives and preservatives, making it a healthier alternative to artificial sweeteners.

How To Make Maple Syrup? 

Making maple syrup at home is a time-consuming process, but it can be a fun and rewarding experience. Here’s a brief overview of the steps involved:

  1. Tap maple trees during the spring when the sap is flowing.
  2. Collect the sap in buckets or through tubing systems. The collected sap is then boiled until it reaches a temperature of 219°F.
  3. Boil the sap to remove excess water and concentrate the sugars.
  4. Filter the syrup to remove any impurities.
  5. Store the syrup in sterilized jars or bottles for future use.  

Does Maple Syrup Go Bad? 

Maple syrup can spoil over time. After opening, genuine maple syrup should be refrigerated and will typically last for about a year. Opened jugs of imitation maple syrup can also be stored in the pantry for approximately one year. Unopened maple syrup can last indefinitely, but it’s best to use it within a year for optimal taste. If the syrup has been stored properly and still looks and smells fine, it is safe to consume. After knowing the answer to the question does maple syrup go bad. For more relevant and useful information, please refer to this new information.

What Is The Cause Of Damaged Maple Syrup? 

The main reason for damaged maple syrup is improper storage. When exposed to air, maple syrup can develop mold or bacteria growth, causing it to spoil. Other factors that may contribute to spoiled maple syrup include contamination during production, storing in a warm environment, or using dirty utensils when handling the syrup. If not stored correctly, the syrup can also crystalize or become grainy in texture over time, making it less appetizing.

How Long Can Maple Syrup Last?

After being opened, authentic maple syrup should be stored in the refrigerator and will maintain its quality for approximately one year. On the other hand, imitation maple syrup can be kept in a cupboard for about one year after opening. When it comes to unopened bottles or jugs of maple syrup, they can last indefinitely if stored in a cool and dry place away from direct sunlight.

Glass Bottle Of Maple Syrup (Unopened)

Store unopened syrup away from direct sunlight, especially if in a glass bottle. Unopened syrup can last indefinitely, opened syrup can last for up to 2 years in the refrigerator and up to 1 year in the pantry.

Plastic Bottle Of Maple Syrup (Unopened)

Plastic should ideally not be kept for more than 18 months to 2 years, while tin should be stored for no longer than 6 months. Regarding maple syrup, let’s explore if it can go bad and how to tell if it is spoiled.

What Is The Storage Temperature For Maple Syrup?

Yes, maple syrup can go bad. Once opened, pure maple syrup should be refrigerated. When stored at 40°F or lower, opened syrup can last for up to 12 months from the packaged date on the bottle. Unopened imitation maple syrup can be stored at room temperature, between 50-70°F. It’s important to note that the best before date on the bottle is a guideline rather than an expiration date. As long as the syrup looks and smells fine, it should still be safe to consume.

How To Tell If Maple Syrup Has Gone Bad? 

There are a few signs to look out for when determining if your maple syrup has gone bad:

  • Discoloration: If the syrup has darkened in color, it may be a sign of spoilage.
  • Mold growth: Any signs of mold or other microbial growth indicate that the syrup is no longer safe to consume.
  • Strange odor or taste: Spoiled maple syrup may have a sour or off-putting smell and taste.

If you notice any of these signs, it’s best to discard the syrup to avoid any potential health risks.

How To Store Maple Syrup?

How To Store Maple Syrup?

Opened syrup should be stored in the refrigerator or freezer and can last up to two years. If the container is unopened, it is safe to store unopened syrup containers in a pantry. It is advisable to find a cool, dry location to prolong the shelf life of your syrup. Avoid storing maple syrup in direct sunlight or warm temperatures, as this can accelerate the spoilage process. Additionally, make sure to use clean utensils when handling the syrup to prevent contamination.

FAQ: Maple Syrup

Can you drink expired maple syrup?

Although real maple syrup does not technically “go bad,” it can develop undesirable qualities that render it inedible. The most reliable method to determine its edibility is to assess its smell and taste. A pleasant aroma and flavor indicate its suitability for consumption.

What is the white stuff floating in maple syrup?

Maple syrup can develop mould or bloom, which is relatively common, especially in 100% pure maple syrup. However, it’s important to note that the presence of mould doesn’t render the syrup unusable. The mould that grows on maple syrup is a rare type of fungus known as a xerophile.

Does 100% maple syrup expire?

Maple syrup does have a shelf life once opened, and mold is not uncommon. According to, 100 percent pure maple syrup should last for a year unopened in the pantry, a year opened in the refrigerator, and indefinitely in the freezer.

Why does my maple syrup taste bitter?

Maple syrup can go bad under certain conditions. It is possible that the burnt residue on the pans could have spoiled the batch. Additionally, if you tapped any soft maples before sugars, buds opening could be another cause of a bitter taste. Even a small amount of buddy sap from a few taps can spoil a larger batch of good maple syrup.

Can I freeze maple syrup?

Yes, maple syrup can go bad. However, freezing maple syrup is an excellent method for long-term storage without any negative impact. According to Powsner, it can be stored indefinitely in the freezer, even if it is in a small plastic jug.

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