Image for How marshmallows are made

How marshmallows are made

Duration: 07:51

Jimmy demonstrates how to make gelatine by using acid to break down the collagen found in pig skin and trotters. He then uses his gelatine to make marshmallows, one of the many products found in supermarkets which use gelatine as a key ingredient.

Available since: Thu 22 Nov 2012

This clip is from

Jimmy's Food Factory Second Helpings, Episode 3

3/3 Visits to chocolate, peanut and yoghurt factories expose some exciting science.

First broadcast: 09 Feb 2011

Image for Episode 3 Not currently available on BBC iPlayer

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