You’re probably one of those people who bought an oyster sauce but didn’t use it. If so, you’re probably wondering:
Has my oyster sauce gone bad? Is it good for a while?
Don’t worry. Below are our answers to all your questions.
If you are looking for the right answers, here’s a summary: Unopened oyster sauce generally lasts. 3 to 6 months after the expiration date. You can keep the oyster sauce fresh by opening it immediately. It should be kept for 3-6 months to ensure its best quality.
What to do if your oyster sauce is bad?
You can tell if your oyster sauce is bad by the appearance of You may notice a white fuzz or green on the skin, or an odd-smell.. Discard any oyster sauce containing this ingredient.
The sauce will improve over time. The flavor of the darkened meat will intensify and become more intense. If it’s too strong for you, you may want to throw it out as you’re unable to enjoy it in your dishes.
Cornstarch is what makes oyster sauce thick. Notice how water is visible? Surface starts to seperate, it’s a sign that the condiment is old. If your oyster sauce does this, it’s best to get rid of it.
How to store oyster sauce

Oyster sauce that has not been opened should be kept in an airtight container Cool and dark placesThe pantry. After the sauce has been opened, do you put it in the refrigerator?
Yes!
It Sauce will last longer if it is kept at a lower temperature. It won’t go bad if you leave it at room temperature, but the Quality will decline faster.
For that reason, store the oyster sauce in the fridge if you’d like it to last longer, but if you know you’re going to use a whole bottle up within a month, you should be fine keeping it on the counter.
Is Oyster Sauce Good for Long Term?

Oyster sauce generally has the following characteristics: Shelf-life is approximately 18-24 Months. You can check the expiry date of the labels to see how long it will last. You can keep the sauce for up to two months.
If unopened, oyster sauce can Last for 3-6 months after the expiry date.
It will stay good as long as it is open. Keep it in the refrigerator for 3-6 months. If you’ve bought one of the more Oyster sauces of high qualityIt should also retain its quality for at least one year.
Oyster Sauce: Substitutes

Firstly, soy sauce You can use it as an option to oyster sauce. You can use it as an alternative to oyster sauce. It doesn’t have the same syrupy consistency or sweetness. Use less soy sauce and a little brown sugar.
You can also try sweet soy sauce Instead of using oyster sauce, you can use it to flavor your food.
Oyster sauce can be substituted with this delicious condiment hoisin sauce. It can be used in the same amount as oyster sauce. Alternatively, Use hoisin sauce and soy in a 1:1 ratio.
Oyster Sauce: The bottom line
The oyster sauce is made of caramelized oyster sauce, salt, sugar and occasionally soy sauce thickened by cornstarch. The result is a dark and syrupy sauce, which is the hallmark of this condiment.
The oyster sauce will last for quite a while. But if you’d like to keep it fresh for longer, store it in the fridge. Oyster sauce can last 3-6 months in the fridge after it’s been opened.