Yeast: Rising from the bread

02 April 2015
Presented by Philip Garsed.

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A favourite Easter tradition are hot cross buns, but there's one particular ingredient which no bread can do without: yeast. What is about this strange powdery ingredient that makes it so useful? Philip Garsed took some freshly baked hot cross buns to molecular biologiest Lia Chappell to find out.

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