Proper Storage of Molasses After Opening: Tips and Tricks

Molasses is a rich, thick syrup that is made from the juice of sugarcane or sugar beets. It has been used as a sweetener for centuries and is still popular today due to its unique taste and nutritional benefits. Molasses can be used in baking, cooking, marinades, glazes, and even cocktails! However, storing molasses after opening can be tricky. In this blog post, we’ll provide you with tips on how to store molasses properly.

1. Keep it Cool and Dry

The first thing you need to know about storing molasses is that it should be kept in a cool and dry place. When exposed to heat and moisture, molasses tends to crystallize or ferment over time which changes its texture and taste.

It’s best to keep your opened bottle of molasses away from direct sunlight or any other sources of heat. Store it on a shelf or inside your pantry where the temperature is stable.

2. Use Air-Tight Containers

Another important factor when storing molasses after opening is keeping air out of the container as much as possible. Oxygen speeds up the natural process of oxidation which causes food products like molasses to spoil more quickly than they would otherwise.

To prevent this from happening with your opened bottle of molasses, transfer it into an air-tight container such as a mason jar with a tight-fitting lid instead of leaving it in the original packaging.

3. Check Expiration Dates

Like all food items that come with expiration dates printed on their packaging labels, you should always check how long your bottle of molasses will last before consuming it past its recommended date.

Generally speaking: unopened bottles can last up to five years while open jars have around six months before expiry depending on storage conditions.

4. Refrigerate for Long-Term Storage

If you have a large bottle of molasses that is not finished within a few weeks, you may want to consider refrigerating it for long-term storage. Molasses can be stored in the fridge for up to two years without worry as long as it’s in an air-tight container.

However, bear in mind that refrigeration will cause the molasses to become thicker and harder to spoon out when cold, so plan accordingly if you plan on using it regularly!


Molasses is one of those versatile sweeteners that add depth and flavor notes to your favorite recipes. It’s essential to store it properly after opening by following our tips mentioned above: keeping it cool and dry, transferring into air-tight containers, checking expiration dates before consumption, and refrigerating only as needed.

With proper care taken during storage timeframes both short-term or long-term; your precious jars of this fantastic syrup should remain safe – no matter what!

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