D writes
I purchased a gallon about a year and a half ago but haven't used it as much as I anticipated. It's currently separated and I'm wondering if it can simply be remixed or if it's gone bad and needs to be disposed of.
Bifen IT has a shelf life of 3-5 years if kept in a cool dry area. If you notice separation, that is normal and you can shake it up and it still be effective.
Answer last updated on: 08/19/2023