1. Usually, the food we buy has a shelf life. For manufacturers, their products must comply with the corresponding laws and regulations, so mark the shelf life to remind consumers to eat before this period.
2. Whether it is really edible depends mainly on whether the food has gone bad. Besides, your ready-to-eat oats will expire in half a month. I suggest you confirm whether they will go bad. If they go bad (they are prone to damp and mildew in dog days), don't eat them whether they are expired or not. On the contrary, even if it is overdue for a few days, it can still be eaten if it is not spoiled and moldy.
3. Finally, if you can't confirm the deterioration, don't eat it. After all, we still have to take good care of our bodies.
Extended data
Oats belong to minor grains, and there are mainly two kinds, one is skin oats and the other is naked oats.
Naked oats have no shells when cooked, commonly known as oil wheat, which is naked oats, and there are many in China. Peeled oats have shells when they are ripe, such as imported Australian oats.
China is one of the cradles of oats, and Wuchuan County, Inner Mongolia is one of the cradles of oats in the world, and is known as the "hometown of oats" in China. It has been recorded in ancient books. It is called Mi in Erya Cao Shi, Pang in Historical Records and Biography of Sima Xiangru, and Bromus in Tang Herbal Medicine. Compendium of Materia Medica says: "Oats are mostly wild, so they are named after bird food". In addition, it is recorded in ancient books such as Disaster Relief Materia Medica and Agricultural Administration.
In the Tang Dynasty, Liu Mengde said that "Tukui oats shake the spring breeze", which shows that oats have a long history of planting and utilization in China, and are distributed everywhere, especially in northern North China, inside and outside the Great Wall, and pastoral or semi-pastoral areas in the Qinghai-Tibet Plateau, Inner Mongolia and Northeast China. Because of the cool climate, oats have been widely planted since ancient times in Shuozhou, Shanxi, Qinba Mountain area in southern Shaanxi and inside and outside the Great Wall of North China.
Baidu encyclopedia: oats