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Questions and Answers
What is the ideal relative humidity (RH) for storing onions for long-term durations?
At what temperature range should onions be stored for optimal long-term storage?
Which type of onion is likely to have a longer storage duration?
Why are onions sprayed with maleic hydrazide (MH) before harvest?
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For how long can sweet onions typically be stored?
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Study Notes
Storage of Dried and Bulb Crops
- Onions, garlic, and dried produce thrive in low humidity storage environments.
- Onions and garlic can sprout when stored at moderate temperatures.
- Pungent onions, known for their high soluble solids, store significantly longer than mild or sweet onions, which typically have a storage duration of one month.
- To extend onion storage, maleic hydrazide (MH) is sprayed a few weeks before harvest to suppress sprouting.
Recommended Storage Conditions
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Onions:
- 0-5°C (32-41°F), 65-70% relative humidity (RH) for a potential storage duration of 6-8 months
- 28-30°C (82-86°F), 65-70% RH for a potential storage duration of 1 month
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Garlic:
- 0°C (32°F), 70% RH for a potential storage duration of 6-7 months
- 28-30°C (82-86°F), 70% RH for a potential storage duration of 1 month
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Description
Explore the optimal storage conditions for onions and garlic to maximize their shelf life. This quiz covers the ideal temperature and humidity levels, as well as techniques to suppress sprouting. Test your knowledge on how to effectively store these essential produce items.
