"The easiest thing to do is go buy a ton of raspberries ... While fresh, local, in-season produce is always a great option, frozen raspberries are "just as nutritious," Susie says.
Açaí berries also spoil easily, sometimes within a day of harvest, which means frozen or powdered varieties are the most readily available to buy. Most people will consume açaí in frozen ...
Place the baking sheet in the freezer for a few hours until the raspberries are frozen solid. Transfer the frozen raspberries to airtight containers or freezer bags. Label and date the containers ...