What to Look For
Spinach should be green and turgid. Avoid any yellowing.
- 95 - 98% Relative Humidity
Spinach is highly perishable due to it's high metabolic activity and will not maintain good quality for more than 2 weeks. Wilting, yellowing of leaves, and decay will occur after 10 days.
It is extremely important to maintain high levels of relative moisture with spinach. The loss of water acts as an accelerator of vitamin degradation.
Spinach sealed inside a plastic bag or wrap will keep much longer since the bag helps it keep a much higher level of relative moisture.
Response to Ethylene
Spinach is highly sensitive to ethylene. Exposure will cause the leaves to yellow. Do not store with items such as apples, melons and tomatoes.