While dry oats generally have a longer shelf life compared to some other foods, the safety and quality of any food product can deteriorate over time, even if there are no visible signs of mold or infestation.
Factors like temperature, humidity, and the initial quality of the product can all impact how long dry oats remain safe to eat. Over time, the oats may become rancid, lose their nutritional value, and develop an unpleasant taste.
To ensure food safety and avoid potential health risks, it is best to adhere to general food storage guidelines and check the "best by" or expiration date on the oat package. If the oats are past their expiration date or if you are unsure about their safety, it's best to discard them and purchase a fresh batch.
Remember, when in doubt about the safety of any food item, it's always better to err on the side of caution and avoid consuming it.