Quick facts
- Watch for
- mold
- off odor
- slime
- swollen can
- discoloration
- wrong texture
- Test order
- Look
- smell
- taste only if 1
- 2 pass
- Usually safe
- crystallized honey
- chocolate fat bloom
- hardened brown sugar
- vinegar sediment
Red flags: stop and inspect
Mold
Any fuzzy or colored growth.
Off odor
Sour, rancid, or fermented smell.
Slime
A sticky film on the surface.
Swollen can
A bulging or popped lid.
Discoloration
Green, gray, or an odd tint.
Wrong texture
Mushy, slimy, or hard.
The 3-step test
- Look Mold and color
- Smell Off or sour
- Taste Only if 1&2 pass
- In doubt Throw it out
Usually safe
- Crystallized honey
- Fat bloom on chocolate
- Hardened brown sugar
- Harmless vinegar sediment
Discard on sight
- Bulging or spurting cans
- Slimy or sour meat
- Musty, buggy grains
- Rancid, bitter oils or nuts
The one rule
When in doubt, throw it out.
Questions this answers
Tap a question for the short answer.
When should I throw food out?
Discard on sight any bulging or spurting cans, slimy or sour meat, musty or buggy grains, and rancid, bitter oils or nuts. Otherwise run the 3-step test: look for mold and color changes, smell for off or sour odors, and taste only if both pass. When in doubt, throw it out.
Keep going
Related to this
Membership · $49.95 per year
There is a lot more behind the lock
Every recipe and resource from the Prepper's Chemical Survival Guide, all six field guides to read here and download, the full audit and logbook, all twelve reference charts, and no ads.
My Manual · included
Build your own field manual
The most useful thing a membership gives you. Save any page on this site, recipes, charts, and whole field guides included. Put them in your order, name it, and print one manual with a cover and contents, or keep it as a PDF that opens with no signal.
- It works when this site does not
- Only your pages
- Anyone in the house can use it
- One current copy, not a pile of printouts
- The house binder
- A copy for the bug-out bag or truck
- A copy for family
- An offline PDF
Stay Ready
New entries, updates, and useful instruction.
Stay one step ahead on your preparedness journey.





