overheated neem oil
January 20, 2019 03:24PM
I left a gallon of neem oil out in the heat (90 degrees) for a day. Has it
gone bad?



Edited 1 time(s). Last edit at 01/21/2019 08:03AM by Michael Phillips.
Re: overheated neem oil
January 21, 2019 08:11AM
The herbal constituents in pure neem oil are degraded over time by being subject to being "thawed" again and again. By which I mean going from a cool state (below 60F) where the oil solidifies to warmer temps where the oil liquefies. Storage at higher temps wouldn't be helpful but one day in summer heat doesn't undo potency. Far more important is pouring into batch size containers upon the initial warming to liquefy the seed oil and then storing those re-pours at a stable temperature below 60F until needed.

Lost Nation Orchard
Zone 4b in New Hampshire
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