Concerned about volume berries take up in a fermenter

[Yuri]

Hi,

I am interested in making a berry recipe, but some recipes state to add almost 3 kg's to 5L??? For reference, 3 kg of berries take up 4.8L of volume according to this calculator: https://www.aqua-calc.com/calculate/food-weight-to-volume

How do you guys make a 5L batch with 3 kg's of berries? Am I missing something like needing to blend the fruit or something similar? Do you guys calculate with the dry weight? Any help is really appreciated.

 

[MashBag]

I might be missing something, but just use a bigger tub. With whole fruit, if it floats ouch if down everyday, else it will spoil.