ethylene
Spinach
The three-to-five-day green — paper towel wrapped, and the smoothie-freezer rescue.
Core Biological & Field Specifications
Counter or fridge
Fridge crisper — dry, paper-towel-lined container
Ripe test
Crisp dark leaves, no slime, no sour smell
Shelf life
3–5 days fridge; 6+ months frozen
Ethylene
Very sensitive — store alone