How To Properly Store Salmon Oil For Dogs
June 16, 2026Salmon oil is a popular supplement for dogs, rich in omega-3 fatty acids EPA and DHA, which support your dog's overall wellness. But like any oil-based supplement, how you store it matters. This post covers proper salmon oil storage and answers the common question: Does salmon oil need to be refrigerated?
First, it is important to choose a quality salmon oil for your dog. Look for sustainably sourced products that are free from artificial additives or preservatives. Once you have a good product, proper storage keeps it fresh and ready to use.
Does Salmon Oil Need To Be Refrigerated?
Yes. Salmon oil should be refrigerated after opening to preserve its freshness and prevent it from going rancid. The omega-3 fatty acids in salmon oil are delicate and can break down when exposed to heat, light, and air, resulting in a sour smell and unpleasant taste. Refrigeration slows the oxidation process and extends the oil's shelf life.
How To Store Salmon Oil For Dogs

If you are looking for a quality salmon oil for your dog, Vital Pet Life Salmon Oil is sustainably sourced and free from artificial additives or preservatives, providing omega-3 fatty acids EPA and DHA to support your dog's overall wellness.
Here are the key storage tips to keep your salmon oil fresh:
Store it in the fridge.


Salmon oil should be refrigerated after opening. A cool, dark location like the refrigerator protects it from light and heat, which are the two main drivers of oxidation.
Use an airtight container.

Always use an airtight container to keep air from entering and oxidizing the oil. If using the original bottle with a flip-top or pump, make sure it is sealed properly after each use.
Label the container

Write the date you opened the bottle on the label so you can track how long it has been stored. Salmon oil can typically last up to 6 months when refrigerated properly.
Don't freeze it


While refrigeration is important, freezing salmon oil is not recommended. Freezing can change the texture and consistency of the oil, which may affect how your dog accepts it.
Keep it out of your dog's reach.


Although salmon oil is appropriate for dogs to consume, it is important to keep it out of their reach to avoid accidental spills or overconsumption.
What Happens if Salmon Oil is Not Properly Stored?
Here are some potential consequences of not storing salmon oil for dogs properly:
Improper storage causes salmon oil to oxidize and go rancid. Here is what to watch for:
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The oil develops a noticeably sour or sharp odor beyond its normal mild fish smell
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The color darkens or becomes cloudy
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Your dog refuses it after previously accepting it willingly
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The oil smells or tastes off when you open the bottle
If you notice any of these signs, discard the oil and open a fresh bottle. Rancid oil has degraded omega-3 content and is not worth using. Proper storage from the start is the easiest way to avoid this.


Frequently Asked Questions

Does salmon oil need to be refrigerated before opening?
An unopened bottle of salmon oil can typically be stored in a cool, dark place, such as a pantry or cabinet. Once opened, refrigerate it to slow oxidation and preserve freshness.
How long does salmon oil last after opening?
When stored properly in the refrigerator in a sealed container, salmon oil typically lasts up to 6 months after opening. Always check the bottle's expiration date and watch for signs that the oil has turned.
Can you freeze salmon oil for dogs?
Freezing is not recommended. It can alter the texture and consistency of the oil. Refrigeration is the right storage method after opening.
What happens if salmon oil goes rancid?
Rancid salmon oil has a noticeably sour or sharp smell, may darken in color, and your dog may refuse it. The omega-3 content degrades as the oil oxidizes, so rancid oil should be discarded and replaced.
How do I know if salmon oil has gone bad?
The clearest sign is smell. Fresh salmon oil has a mild fish scent. If it smells sour, sharp, or significantly stronger than usual, the oil has likely oxidized. Discard it and start a fresh bottle.
The Bottom Line
Salmon oil is a valuable addition to your dog's daily routine, providing omega-3 fatty acids EPA and DHA to support their overall wellness. Storing it properly keeps it fresh and ready to use. Refrigerate after opening, seal it tightly, label the date, and keep it out of your dog's reach. Following these steps helps ensure your dog gets the most from each serving.