Fish sauce does not age well

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Joined Sep 5, 2008
I've noticed that fish sauce does not age well here. I keep it in the fridge, but after a few months it gets darker and has more pungent fishy smell and taste. I have to readjust the amount I use, using less than when it's new and completing with soy sauce to balance it out. This is with various different brands of fish sauces (including red boat 40N). 

The biggest issue I have with it is that when it's that pungent, when I use even just a few drops of it, it smells horrible in the whole house. Whereas when the fish sauce is new, it doesn't smell as much AND the smell is much more subtle and refined, not as gross. 

Is that normal? Have you guys noticed that also? Do you just use up all your fish sauce within 1 or 2 months? 
 

phatch

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Andrea Nguwen of vietworldkitchen agrees with you. I usually use it up within 6 months of opening so i don't notice degradation in that time frame.
 
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Joined May 25, 2016
Also, do not keep it too long , meant to mention it before... Fish sauce is frequently use up fast.
 
5,692
540
Joined Sep 5, 2008
Thanks guys! I appreciate the feedback. for some reason I assumed that fish sauce would keep just as well as soy sauce, I guess now I know better. 
Andrea Nguwen of vietworldkitchen agrees with you. I usually use it up within 6 months of opening so i don't notice degradation in that time frame.
I think I notice the degradation in color, smell and taste before 6 months, but I'm not sure. I'll have to pay more attention to how long I keep it. Thanks for pointing that out. 
 

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