yeasts

• yeasts make alcoholic drinks and bread rise
• alcoholic beverages are made using the fermentation of yeast
• during the fermentation process, yeast converts sugar into carbon dioxide and ethanol - which is alcohol
• the sugars in grapes are fermented to produce wine
• the production of many varieties of bread relies on the properties of yeast as a raising agent
• yeast is added to flour and water to form a dough. salt is added for flavour, but also to strengthen the gluten in the dough
• with the ideal conditions for growth, the yeast starts to grow quickly. the yeast ferments the sugar to produce carbon dioxide - this gas is what causes the bread to rise