On Mon, 12 Mar 2018 22:11:48 +1100, Bruce >
wrote:

>On Mon, 12 Mar 2018 22:00:24 +1100, FMurtz >
>wrote:
>
>>Why are almost all frozen berries as sour as all get out?
>
>I don't really understand that sentence, but I find almost all
>supermarket fruits to sour. Especially berries, peaches, apricots,
>nectarines, plums often too.

Most ripe fruit, especially berries, won't hold up well during
shipping so they're harvested while still green.
However berries for freezing typically don't need to be shipped, they
are frozen in the field, so they would be picked fully ripened. For
processed crops like frozen and canned the factory is transported to
the fields in large semi trailers. If frozen fruit is sour it's time
to change brands.