Can edamame that has been frozen for a year still be eaten?

Generally speaking, whether edamame can still be eaten after being stored in the freezer for a year depends on the storage conditions and the condition of the edamame. The specific analysis is as follows:

If the edamame were thoroughly washed and blanched before freezing, tightly sealed in an airtight bag with no air left, and kept in a freezer at a stable temperature below -18°C without repeated thawing and refreezing, and if after thawing the edamame appear bright green, have no off odor, and maintain a firm texture without becoming soft, mushy, or sticky, then they are not spoiled and can be safely consumed—although their taste and nutritional value may have slightly declined.

However, if the edamame were not properly handled before freezing, were not sealed well, underwent repeated thawing during storage, or after thawing appear yellowish or darkened, have an unpleasant smell, become soft and slimy, or show frost or ice clumping on the surface, this indicates spoilage and they should not be eaten. Consuming spoiled edamame may irritate the gastrointestinal tract, causing discomfort such as abdominal pain and diarrhea, and potentially harming health.

To store edamame in the freezer, clean them thoroughly beforehand and seal them properly to prevent odor transfer from other foods. Fully thaw before use and carefully inspect their condition; if there is any doubt about freshness, it's best not to consume them. Always cook thoroughly before eating to ensure food safety and avoid health risks due to improper handling.