That depends on how long you use it and leave it uncovered. Really can last for months. One way to tell is open it and take a sniff. If you choke its still there LOL !Chopper said:And how long will this solution keep if I store it in an air-tight gallon jug in a cool, dark place? I've heard it's good for up to 4 months, as long as it retains its strong smell. Is this true?
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