Can I eat fish sauce left overnight?

My mother often keeps leftover fish sauce overnight because she feels sorry for it, thinking that because the fish sauce is salty, it won't spoil quickly. Is this true or false? (Anh, 22 years old, Hanoi ).

Reply:

Normally, safe fish sauce is pure fish sauce, stored in a sealed bottle. Used fish sauce is no longer pure, contains many other ingredients so it is not safe for health. For example, when you dip food, there are often leftover vegetables, meat, fish or bacteria in your mouth or from chopsticks. Diluted fish sauce has sugar, MSG, filtered water, chili, lemon...

If kept for later use or left overnight, the fish sauce will no longer be tasty and will easily spoil. If the outside temperature is not guaranteed, the risk of bacterial contamination will be even greater.

Therefore, people should not be stingy with a little bit of dipping sauce but keep it for use. If you find it wasteful, you can add it to season other dishes that are being cooked such as braised fish, braised meat... This helps you ensure the health of the whole family.

You can use your own bowl of fish sauce to avoid the risk of contracting infectious diseases or spreading viruses and bacteria. If you eat together, you should not use chopsticks to stir the bowl of fish sauce or food on the plate...

When eating, you should pour out a moderate amount of fish sauce to eat, to avoid waste.

Associate Professor, Dr. Nguyen Duy Thinh
Former staff of Institute of Food Technology, Hanoi University of Science and Technology

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