I went to get 20lbs for 25 bucks, got the large ones, it looks clean and taste way better than supermarket ones. don't think i should be washing the frozen blueberries?
It does not make much sense to wash frozen berries,
it depends on your luck, sometime they freeze the berries right away,
but the fresh one they can sell them for higher price so they tend to
keep them longer at room temperature.
However, pick them over before use, there are some blemished ones.
The bulk one at Superstore is no good, try the IQF one or wild blueberries.
The fresh one? $4.99 for 6 oz basket