Question:
The recommended moisture level for storage of wheat is
The recommended moisture level for storage of wheat is
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To remember safe storage moisture contents:
- Wheat/Rice/Maize: \( 10\% \) to \( 12\% \) (safest at \( <10\% \)).
- Oilseeds (e.g., Mustard): \( 6\% \) to \( 8\% \) (lower because fat does not absorb water, concentrating moisture in the non-fat portion).
- Wheat/Rice/Maize: \( 10\% \) to \( 12\% \) (safest at \( <10\% \)).
- Oilseeds (e.g., Mustard): \( 6\% \) to \( 8\% \) (lower because fat does not absorb water, concentrating moisture in the non-fat portion).
Updated On: Jul 29, 2026
- <10%
- >10 %
- <20%
- >25%
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
Grain storage moisture management is critical in post-harvest technology.
High moisture content in stored grains promotes microbial respiration, mold development (e.g., Aspergillus flavus), and grain heating, and encourages insect pest infestations.
Step 2: Detailed Explanation:
Safe storage of food grains depends directly on lowering the moisture content of the grain below a critical threshold.
For wheat (Triticum aestivum), the recommended moisture level for long-term safe storage is under \( 10\% \) to \( 12\% \).
When grain moisture content is kept below \( 10\% \):
- Metabolic and respiration rates of the grain remain minimal.
- Fungal spores cannot germinate, preventing mold growth and associated mycotoxin development.
- Storage insects and weevils (like the rice weevil, Sitophilus oryzae) cannot breed effectively, as they require higher moisture levels to sustain their life cycles.
If moisture levels exceed \( 14\% \), grains undergo rapid spoilage and risk heat damage.
Therefore, among the given options, \( <10\% \) represents the safest, most scientifically recommended moisture level to ensure grain viability and quality.
Step 3: Final Answer:
The recommended moisture level for safe storage of wheat is \( <10\% \).
Grain storage moisture management is critical in post-harvest technology.
High moisture content in stored grains promotes microbial respiration, mold development (e.g., Aspergillus flavus), and grain heating, and encourages insect pest infestations.
Step 2: Detailed Explanation:
Safe storage of food grains depends directly on lowering the moisture content of the grain below a critical threshold.
For wheat (Triticum aestivum), the recommended moisture level for long-term safe storage is under \( 10\% \) to \( 12\% \).
When grain moisture content is kept below \( 10\% \):
- Metabolic and respiration rates of the grain remain minimal.
- Fungal spores cannot germinate, preventing mold growth and associated mycotoxin development.
- Storage insects and weevils (like the rice weevil, Sitophilus oryzae) cannot breed effectively, as they require higher moisture levels to sustain their life cycles.
If moisture levels exceed \( 14\% \), grains undergo rapid spoilage and risk heat damage.
Therefore, among the given options, \( <10\% \) represents the safest, most scientifically recommended moisture level to ensure grain viability and quality.
Step 3: Final Answer:
The recommended moisture level for safe storage of wheat is \( <10\% \).
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