Generally speaking, it is best not to eat. Generally, bacteria have been breeding for a year, and may even be moldy. If stored in a cool and ventilated condition, fried black sesame seeds can be eaten in small quantities without insects, moisture, mildew and caking. If the taste and smell are wrong, it's best not to eat it. This kind of food that has been kept for a long time is also easy to cause cancer. It is recommended to eat fresh food.

Generally, the shelf life of soybean is one year, mainly through sensory judgment, as long as it is yellow, odorless and moldy. Soybean powder is a powder made by frying soybeans, peeling and grinding. Bean flour is one of the raw materials for snowballing.

Extended information food business enterprises shall carry out food business activities in accordance with the shelf life determined by food production enterprises. During the shelf life, the food shall meet the requirements of the corresponding food safety standards. The shelf life should be based on the microbial and physical and chemical characteristics of food; Packaging materials and packaging methods, production technology, workshop environmental conditions, expected use and shelf form, storage and transportation conditions and other factors. For the same food, different packaging materials, packaging methods or storage environment parameters can be used to stipulate different shelf life.

Food production enterprises shall establish procedures for determining the shelf life of food and scientifically determine the shelf life of food. Encourage verification of the shelf life of food. The determination and verification of the retention period shall be recorded. The contents of the record shall include the basic information of food, food ingredients and semi-finished products, the determination and verification methods of shelf life, judgment standards, inspection conditions, relevant data, analysis process and conclusions. The recommended service life of food ingredients and semi-finished products can be specified.