When properly sealed, grains can be stored for a pretty long time.
At the same time, you still shouldn't store them for too long, because their quality might deteriorate a lot.
Here are a few reasons, why.
Moisture Content
Grains naturally contain some level of moisture, and if not properly dried and stored, they can retain moisture or absorb it from the surrounding environment.
Excess moisture can lead to mold and fungal growth, resulting in spoilage, off-flavors, and potential health risks.
Pests and Insects
Grains are attractive to pests and insects, including beetles, weevils, and moths, which can infest stored grains.
These pests can rapidly multiply and contaminate the grains, causing damage, reducing nutritional value, and compromising their edibility.
Oxidation and Rancidity
Grains contain oils and fats that can undergo oxidation when exposed to air over time.
Oxidation leads to rancidity, resulting in off-putting flavors, loss of nutritional value, and reduced shelf life.
This process is more pronounced in whole grains due to their higher fat content.
Nutrient Degradation
Over time, stored grains may experience nutrient degradation.
Exposure to heat, light, and air can cause a loss of vitamins, minerals, and other essential nutrients.
This can impact the nutritional value of the grains, reducing their overall quality and health benefits.
Incomplete Processing
If grains are not properly processed and cleaned before storage, they may contain impurities, such as dirt, stones, or other foreign materials.
