how long can you keep purees in freezer?

[forevermore]

made some about a month ago but dd prefers fruit at the moment so not getting much veg down her. do i have to throw it out?

If they're in a sealed container they should be fine for about 3m, I found. Vnd eg tended to keep better than meat. It doesn't generally matter if ice crystals develop on them. But if they go sort-of woolly on the outside, still frozen but vaguely soft-looking, then they've got freezer burn and tend not to taste so good. They wouldn't make you ill, but I would have to be desperate to use them.