raising agents

Question 1

what is raising agent

Answer 1

something added to sweet or savory mixtures to make them rise

Question 2

eg of raising agents

Answer 2

air
carbon dioxide gas
steam

Question 3

eggs as a raising agent

Answer 3

traps certain amounts of air but the foam produced rises to the top of the liquid and some escapes, if sugar is whisked together it is more stable foam is produced
egg white = stable , easily traps air to form a stiff foam which is more stable than a whole egg

Question 5

raising flour as a self raising agent

Answer 5

raising agent is usually baking powder
flour reacts with the liquid of the mixture to produce carbon dioxide which raises the mixture

Question 6

bicarbonate of soda as rising agent

Answer 6

produces carbon dioxide when mixed with acidic ingredients like buttermilk, yoghurt
needs to be measured properly so that there isn’t a unpleasant taste

Question 7

yeast

Answer 7

moisture and food ( sugar and starch ) breaks down into carbon dioxide and alcohol - this is called fermentation