L13 leavening agent

L13 leavening agent

1. influence the leavening effect

   • time
     • long
       • fluttty
     • short
       • gummy center
   • mixing
     • too slow
     • too fast
       • air loss
   • quantity
     • too much
       • expose
     • too litter
       • tough

2. Types of leavening agents

   • physical
     • air
       • e.g.souffle
       • expends in the heat
       • egg whites
     • steam
       • prodution CO2
   • biological
     • yeast
       • e.g. bread
       • Fermentation
         • prodution CO2
   • chemical
     • baking soda
       • used with an acids
         • prodution CO2
     • baking powder
       • baking soda + dry acidic powder

3. Functions

   • risa
   • increase volume