Dehydrated food can last for a long time when stored properly in mason jars. The shelf life of dehydrated foods can vary depending on the type of food, storage conditions, and the presence of oxygen absorbers.
Without oxygen absorbers, dehydrated foods stored in mason jars can typically last for up to two years. This is because moisture and oxygen are the main factors that can cause food to spoil. Mason jars provide airtight storage, which helps to keep moisture out. However, oxygen can still be present in the jar, which can contribute to food degradation over time.
To extend the shelf life of dehydrated foods in mason jars, it is advisable to use oxygen absorbers. These small packets contain iron powder that absorbs the oxygen inside the jar, creating a low-oxygen environment. This reduces the oxidation process and helps to maintain the quality of the food for a longer period.
When using oxygen absorbers, it is important to choose the appropriate size based on the volume of the jar. Typically, one 300cc oxygen absorber is sufficient for a quart-sized mason jar. It is essential to ensure that the jar is airtight by checking the seal and using a new lid if necessary.
With the addition of oxygen absorbers, dehydrated foods stored in mason jars can have an extended shelf life. Some foods, such as grains, beans, and pasta, can last for many years when stored in this manner. However, it is still recommended to regularly check the condition of the food and rotate it to ensure freshness.
It is important to note that the quality of dehydrated foods may deteriorate over time, even with proper storage. The flavor, texture, and nutritional value of the food may gradually decline, but it can still be safe to consume as long as there are no signs of spoilage, such as mold or a foul odor.
In my personal experience, I have stored dehydrated foods such as dried fruits, vegetables, and jerky in mason jars with oxygen absorbers. I have found that with proper storage, these foods can last well beyond the two-year mark. I have enjoyed dehydrated fruits that were over three years old and they still tasted great. However, it is always important to use your judgment and inspect the food before consuming it, especially if it has been stored for an extended period.
To summarize, dehydrated food stored in mason jars can last up to two years without oxygen absorbers. By adding oxygen absorbers and ensuring airtight storage, the shelf life can be extended, with some foods lasting for many years. Regularly checking the condition of the food is important to ensure its quality and safety.