sell-by date

• Fecha indicada en un producto perecedero que marca el último día en que debe venderse; también se usa metafóricamente para referirse a algo o alguien que ya no es útil, eficaz o relevante.

The date marked on a perishable product indicating the last day it should be sold, often used metaphorically to refer to something or someone that is no longer useful, effective, or relevant.

1. Expiration date for foodB1formal

   The date printed on a food product indicating the last day it should be sold or consumed for optimal quality.

   Fecha de caducidad

   • Always check the sell-by date before buying milk.
   • The yogurt is still good even after its sell-by date.
   • Supermarkets often discount items close to their sell-by date.

2. Figurative: end of usefulnessB2informal

   A point in time when something or someone is no longer effective, popular, or useful.

   Fecha de caducidad (figurado)

   • That old computer has passed its sell-by date.
   • His political ideas are well past their sell-by date.
   • The company's outdated business model has reached its sell-by date.