Learn how to store pure maple syrup properly, whether it’s opened or unopened, and why refrigeration is key to keeping it fresh.
Maple Syrup Is a Natural Product — Treat It With Care
Pure maple syrup is made from just one ingredient: sap from the maple tree. Because it’s all natural and contains no preservatives, storing it correctly helps maintain its beautiful flavor and prevents spoilage. Here’s everything you need to know to keep your Dodge’s Sugar Shack syrup tasting its best.
Storing Unopened Maple Syrup
Unopened maple syrup is shelf-stable for a long time. Where to store it:
- A cool, dark pantry
- A cupboard away from heat sources
- A basement food shelf
As long as it’s sealed, it doesn’t require refrigeration.
Storing Opened Maple Syrup
Once opened, maple syrup must be refrigerated, even if it’s in a plastic jug.
Why? Pure maple syrup contains no preservatives, so refrigeration helps prevent mold growth and keeps the syrup fresh.
Can Maple Syrup Get Moldy?
Yes, but it’s usually harmless surface mold. If you see mold:
- Remove the mold layer
- Bring the syrup to a boil
- Let it cool
- Store it again in a clean container
But the best prevention is simply keeping it cold.
Shelf Life
- Unopened: Up to 2–4 years
- Opened: Up to 1 year in the refrigerator
Freezing Maple Syrup (Yes, You Can!)
Maple syrup won’t freeze solid. It becomes thick and slushy.
It’s a great option for long-term storage.
Final Tip
Always keep maple syrup tightly sealed. Exposure to air can cause crystallization or subtle flavor changes over time.
Want to learn more? Check out our From Sap to Syrup page to see how we make it.