Figuring package overrun by weight, no particulates

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 % Overrun = (Wt. of mix - Wt. of same vol. of ice cream )/Wt. of same vol. of ice cream x 100%

Must know density of mix (wt. of 1 L), usually 1.09 - 1.1 kg. /L.

(see example below)

Example : If 1 L of ice cream weighs 560 g,
% Overrun = (1090 - 560)/560 x 100% = 94.6% Overrun

(Note : Figuring package overrun by weight if the ice cream has particulates in it gives very little information because both the ratio of ice cream to particulates and the air content of the ice cream affect the final weight.)