Can you use the yeast to make the dough
If the dough is not spoiled, you can continue to use it. Yeast is a natural leavening agent and a living single-celled beneficial bacteria. It produces a large amount of carbon dioxide gas under the right temperature and humidity conditions, making the dough fluffy and honeycomb-shaped. However, yeast can only be effective if it is used correctly. First of all, do not put yeast directly into the flour, first melt it with warm water and then add it to the flour in batches, so that the fermentation effect will be better. Secondly, the temperature of the water used to dissolve the yeast powder should not exceed 55 degrees or the yeast will be scalded to death. The water temperature is best between 25-35 degrees.What is the solution for yeast failure to rise
The main reason for yeast failure to rise is related to the amount of yeast put in and the temperature. If the dough won't rise, you can deal with it depending on the situation. If the yeast powder has expired and the dough won't rise, you can add double yeast to re-ferment. Start by dissolving the yeast in a small amount of water and expanding the surface area of the dough that hasn't started yet. Pour in the yeast water, sprinkle with flour, knead the dough repeatedly to soften it, and leave it to rise. If the yeast is still too inactive to form a dough, you can change it to a cake to avoid waste.How to tell if the yeast is active
Prepare half a cup of lukewarm water (just enough to feel slightly warm in your hand), and pour 1/2 teaspoon (2.5ML) of the sugar into the lukewarm water and stir until dissolved. Pour 1 teaspoon (5ML) of dry yeast into the warm water and stir until dissolved. 10 minutes later, the more active the yeast, the more foam it will produce. Fully inactivated yeast will not foam.These are the most common types of yeast in the world.