Few things spoil baked goods like dead yeast. Even if you read on the packaging that the yeast has not yet expired, this does not guarantee that it is active. In order for the baked goods to be "fluffy", so that the dough is guaranteed to rise, take a few minutes to check the yeast and you will not have to send expensive food to the trash with deep regret.
It is necessary
- - yeast;
- - warm water or milk;
- - sugar;
- - timer.
Instructions
Step 1
If you have fresh pressed yeast in a briquette, then, first of all, pay attention to their appearance and smell. Live yeast has a delicate creamy color, with a clear appetizing yeast odor. If you press on them with your finger, a hole will remain in them and they, in no case, will crumble. If live yeast "smears" their activity is also questionable, it is possible that they have absorbed too much moisture.
Step 2
Dry active yeast should be tiny granules, similar to small balls of different diameters. They should not stick together and, as the name suggests, should be dry and crumble easily if rubbed between your fingers.
Step 3
Yeast is a living organism that "eats" sugar and produces alcohol and carbon dioxide, therefore, in order to check the activity of yeast, it is necessary to add a little sugar to them. For one teaspoon of live yeast, you need to put one teaspoon of granulated sugar.
Step 4
After adding sugar to the yeast container, pour ¼ cup warm water or milk into the same container. The temperature of the liquid you add to the yeast is very important. The fact is that "live" yeast can be "brewed" with too hot water and milk. The optimum liquid temperature is 42 degrees Celsius. If you poured the yeast with boiling water or just hot water with a temperature of over 50 degrees Celsius, do not expect activity from them. Even if they were "alive" before your experiment, the too hot liquid killed these naughty microorganisms.
Step 5
Set a timer for 10 minutes and do other things. When the timer goes off, watch what happened to the yeast. Ideally, a tasty-smelling, thick, creamy head should appear above the "experimental" container, similar to what you can see over a glass of freshly poured good dark beer.
Step 6
If you have dry yeast, first mix ¼ cup warm water or milk with one teaspoon of sugar and then sprinkle the contents of one small bag (11 grams) of dry yeast over the surface of the liquid. Try to sprinkle it evenly, make sure all yeast is sprinkled in a thin layer, and if necessary, gently rotate the container to distribute it.
Step 7
Set a timer for the same 10 minutes. When the timer goes off, look at the yeast. They should form a nice foam head.
