People believed life spontaniously generated.
Spallanzani boiled two sets of broth. One then sealed, one left open. One sealed did not go off, other did. Opponants claimed it was the air which triggered the change.
Schwann showed meat would not go off if air was heated first to kill microorganisms.
Pastuer Heated broth in two flasks, both left open but one had a curved neck so the microorganisms settled in the bend.
Bacteria culture added to milk.
Bacteria produces solid curds.
Curds are separated from liquid whey.
Add more bacteria.
Leave to ripen.
Mould added to give flavour.
Bacteria, Curds, Separate, Bacteria (again), Ripen, Mould
Because Cassie Says Bring Red Meat
Milk is heat treated to kill bacteria.
Starter culture added.
Bacteria ferment surning lacose sugar into lactose acid.
The acid causes milk to clot.
Solidifies into yogurt.
Sterilised flavour added.
Heated, Cultured, Fermented, Clot, Solidifies, Flavour
Hating Cassie Feels Cute So Far
Glucose >> Carbon Dixoide + Energy + Ethanol
Glucose + Oxygen >> Carbon Dioxide + Energy + Water
Used in bread, yeast converts sugars to CO2 and ethanol.
Makes bread rise.
Barley grains germinate, put in warm water.
Starch >> Sugar by enzymes. Then dried.
Known as malting.
Mashed up and water is added. Then Sieved.