Yeast

Yeast  

  

What is Yeast? Yeast is fungy like found in the air around us. It's been around for a long time/years. It is ma made- In a bottle. There's 1000 kinds of yeast.

What is fermentation?

the chemical breakdown of a substance by bacteria, yeasts, or other microorganisms, typically involving effervescence and the giving off of heat

What affect does sugar have on yeast?

Too little sugar in dough can slow down yeast activity: Yeast is a lot like us – it loves to eat sugar. Yeast needs sugar to produce carbon dioxide – the leavening gas that causes the dough to rise.

What are 3 foods that have yeast?

 Breads, muffins, croissants, and other baked goods usually contain yeast. 

Equipment: 

1. Spoons
2. Kettle
3. Bowl
4. Beaker
5. Cloth sieve
6. Funnel
7. Plastic (PET) Bottle and cap

Materials:

• 500ml warm water
• 1/2 tsp active dried yeast
• 1/2 tsp sugar

Ginger beer

• 3/4 cup sugar 
• 1/2 tsp cream of tartar
• 1L cold water
• Juice of 1/2 lemon
• 1 tsp Ginger beer bug.

Method: 

1. In a large bowl, put the sugar and cream of tartar, then add the warm water.
2. Stir to dissolve the sugar before adding the cold water.
3. Add the ginger beer bug to the large bowl of cold water.
4. Stir well and the pour into your clean bottle.
5. Label you bottle with your group names.
6. Place all the bottles in the class container.
7. Store in a cool,dark place for 1 week before drinking.
8. Make sure you open the bottle in the kitchen sink as it might over flow. Open the cap bit by bit to allow the air to escape.

Today We made Ginger beer in class. We did this by activating the yeast first by adding sugar to the yeast, putting this, We it to the side and left it to ferment while we made the rest of the ginger beer. We made the ginger beer in an ice-cream container by adding first the sugar then the water,some lemon juice and lastly the ginger beer bug. Once  everything was mixed up we put it in a bottle. It is going to take about 6 days to turn into ginger beer. Mr Palmer is going to keep in his office for the next week.