I pick/buy fresh fruit and then freeze it at home.
We have a patch of wild blackberries which I have been tending and expanding over the years and we get so much fruit I have to freeze it so it doesn't go to waste.
This lot took 1 minute to pick.
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A tip for freezing soft fruit such as berries, to stop them clumping, is to spread them out on a baking tray or similar and freeze them.
Once frozen they can be put in a freezer bag and won't stick together.
Frozen bananas turn smoothies into something more like ice cream or froyo.