Expert Tips for Storing Maple Syrup

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To store maple syrup properly, experts recommend the following tips:

1. Refrigerate: After opening, store maple syrup in the refrigerator to maintain its freshness and prevent spoilage. The cold temperature helps preserve its flavor and consistency.

2. Use airtight containers: Transfer the syrup into a clean, airtight container to prevent air exposure, which can cause the syrup to spoil or absorb odors from the fridge.

3. Avoid direct sunlight: Store the syrup in a cool, dark place away from direct sunlight. Light and heat can degrade the quality and flavor of the syrup.

4. Check for mold: Before using the syrup, inspect it for any signs of mold growth. If mold is present, discard the syrup immediately.

By following these simple storage guidelines, you can ensure that your maple syrup stays fresh and delicious for a longer period of time.


Maple syrup is a versatile and delicious ingredient that adds warmth to a variety of dishes. However, to ensure its longevity and quality, it is important to store it correctly. Unlike honey, maple syrup can go bad once opened. So, how should you store maple syrup? Read on to find out, as experts share their best practices and guidelines.

Storing Unopened Maple Syrup

If you come across a sale on maple syrup at the grocery store, it’s a great opportunity to stock up. According to culinary arts chef-instructor Chayanin Pornsriniyom, unopened maple syrup can last for many years if stored properly.

The key is to keep the maple syrup in a dark, cool, and dry place. This can be a dark cupboard or pantry, away from any sources of heat such as the oven or stovetop. Sunlight, heat, and air can promote the growth of microbes, which can spoil the syrup. By eliminating these factors, the chances of spoilage are reduced, explains chef and founder of Gracefully Fed, Traci Weintraub.

When it comes to the material of the bottle, if you plan to store the syrup unopened for many years, it is recommended to use glass. Plastic bottles can allow oxygen to permeate over time, causing the syrup to darken. However, if you plan to use the syrup within a year, the material of the bottle won’t make a significant difference.


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Storing Opened Maple Syrup

While maple syrup is sold at room temperature in stores, it is best to refrigerate it once it has been opened.

“Refrigeration is necessary to prevent the syrup from spoiling,” advises Weintraub. It is also important to ensure that the container is tightly sealed to prevent dehydration and odors, adds Pornsriniyom. When stored properly in the fridge, an opened bottle of maple syrup can last up to one year.

It’s worth noting that sugar crystals may develop around the cap of the syrup bottle while in the refrigerator. This can make it difficult to open. To solve this issue, Weintraub suggests running the bottle under warm water for about a minute to dissolve the sticky crystals. Just make sure the cap is tightly closed to avoid water entering the bottle.

According to Weintraub, refrigerating maple syrup will not significantly change its texture or taste, except for making it slightly difficult to open. However, if you prefer to have your maple syrup at room temperature or warm, it is still important to avoid storing opened bottles outside of the fridge because it will spoil. Instead, you can take the syrup out of the refrigerator about an hour before using it or gently warm up the desired amount in a pot.

It is possible to freeze maple syrup, especially when buying larger quantities. Freezing increases the shelf life more than refrigerating. You can transfer the syrup into small glass jars, ice cube trays, or freezer-safe silicone containers. When frozen, the syrup will have a slushy-like texture but will return to its original taste and texture when reheated. Thawing can be done overnight on the counter or by using a microwave.

It is crucial to follow the storage techniques mentioned above because maple syrup can spoil. If it goes bad, it will have an “off” or “sour” smell. Mold can also grow on maple syrup, but this is rare if it is stored in a tightly sealed container that prevents oxygen from entering. If mold is present, it can be strained out using a cheesecloth or skimmed off. The syrup should then be reheated to 180 to 200 degrees Fahrenheit to eliminate any mold or bacteria and make it safe to consume. Afterward, the maple syrup can be refrigerated as usual.

If the idea of removing mold makes you uncomfortable, it is advisable to discard the syrup, recycle the container, and purchase a new bottle. Just remember to store it properly to avoid any similar issues in the future.

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