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Asked by donaldsanford6914 ·September 27, 2018 ·6.56k readers

Left ffj outside, still good?

I left most of my ffj outside accidently and I normally store in fridge instead of adding more sugar after its done. A couple of them have a noticeable alcohol smell. R they ruined??

ffj

Top answer

From the KNF library

From the KNF library Drafted by Claude from Office Hours and the books · Sep 2026 · 3 sources

Drake's reply above covers the loss in quality. The library adds a smell test and two storage notes.

  • Smell and taste each jar. Juice should not smell or taste like alcohol or vinegar, and it gets smoother the longer it sits. (Office Hours Ep. 14, 35:45)
  • Cho's FPJ notes say to add more black sugar for storage, so the juice does not oxidize or turn to alcohol. That note is about FPJ, not FFJ. (Cho, Theory, p. 71)
  • The KNF Demystified FFJ steps say to store the poured-off juice out of direct sunlight, where temperature changes little. (KNF Demystified, p. 37)

The library does not say how long outdoor exposure is safe. It also does not say whether adding sugar now would rescue a jar that already smells of alcohol.

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