Generally, powdered grouts expire after one year, while sealed epoxy grouts have can be stored indefinitely as long as they are not exposed to freezing temperatures. One of the components in powdered grout is cement, which must be mixed with water and allowed to cure in order to become firm and stable.

Does pre mixed grout go bad?

Powdered and pre-mixed grout expires one year after manufacture. If the grout container has been opened, it will expire 6 months after opening. The only type of grout that will not expire is epoxy grout. As long as it is kept above freezing temperatures, unopened epoxy grout will not go bad.

What is the shelf life of sanded grout?

Grout has a shelf life of about one year from day of manufacture if it's unopened and store correctly. Once it's opened it may be OK to use for several weeks or so.