Does Maple Syrup Go Bad?

The perfect companion for sauces, marinades and a whole host of dishes, pure maple syrup is a worthy addition to any pantry – especially for those with a sweet tooth! 

But even for those who like to drizzle an extra spoon of maple syrup over their pancakes, it can take some time to finish a whole bottle. 

If you have some maple syrup that’s been sitting in your cupboard for a while, you may be wondering whether it’s still safe to consume. 

With this in mind, we tackle the question – “Does maple syrup go bad?” – and share our advice on how to extend the shelf life of this versatile sweetener.

Does maple syrup expire?

Maple syrup can expire, though in most cases it will only spoil after being opened. A sealed bottle of pure maple syrup, stored in an airtight glass container, can last a few years. However, once opened, it should be refrigerated and consumed within six months to a year. 

Keeping an opened bottle for any longer than this amount of time can cause the maple syrup to spoil. This is because, unlike some other sweeteners, pure maple syrup contains no artificial preservatives. Ultimately, it’s best to refer to the storage instructions provided on the bottle. 

Another thing to remember is that cheaper versions of maple syrup that are mixed with other ingredients like corn syrup will have a different shelf life entirely. That’s why it’s always best to buy bottles that are clearly marked as pure Canadian maple syrup.

How to store maple syrup

It’s always best to store an opened bottle of maple syrup in the fridge, as this will preserve freshness and extend its shelf life. Prior to use, unopened bottles of maple syrup can be stored in a cool dry place in your cupboard. 

If you don’t expect to finish your opened bottle within a year, it can be safely stored in the freezer for an extended period. The high sugar content prevents the liquid from freezing, while its distinctive flavour remains intact. 

The type of bottle used can also affect the shelf life of maple syrup. Glass containers are the best choice, allowing sealed bottles to last several years, while unopened plastic bottles and tins can be kept for up to two years and six months respectively.

So, does maple syrup go bad?

In conclusion, maple syrup can go bad, but in most cases, it will only spoil after the bottle has been opened and left unused for more than six months. 

Before opening, you can safely store a bottle of maple syrup in your pantry for more than a year, and after opening it can last six to twelve months in the fridge.  Alternatively, you have the option to store your maple syrup in the freezer indefinitely. 

Feeling peckish after all this talk of maple syrup? Check out our range of recipes with maple syrup!

Frequently asked questions

Does unopened maple syrup go bad?

An unopened bottle of maple syrup that’s been sealed properly in an airtight glass container will keep for a long time. Generally, it will still be safe to consume several years after being produced, though the shelf life may be lower if it’s stored in a plastic bottle or tin.

Does maple syrup go bad after opening?

Maple syrup will go bad after opening, as the exposure of the liquid to the surrounding air can cause mould to grow on the surface. However, this will generally only occur after several months, and as long as a year if the bottle has been moved to the fridge after opening. 

Does maple syrup go bad if not refrigerated?

A sealed bottle of maple syrup can last up to a year outside of the fridge when stored properly in a cool, dry place. An opened bottle of maple syrup will eventually spoil, regardless of whether it has been refrigerated or not, though it will last between six to months in the fridge.