There is a wide variety of yeast, but you don't have to dig in into every detail. This article we share 5 things you need to know about yeast.
1. What Is Yeast?
Yeast is a microscopic fungus consisting of single oval cells. And yeast is capable of converting sugar into alcohol and carbon dioxide. What is fungus? What is single oval cells? No worries. All you need to know is human usually use yeast to make alcohol or bread.
2. Could we use bread yeast to make alcohol?
You might know there are two types of yeast, one is "brewing yeast", the other is "bread yeast". The definition is given by humans. After lots of trails, we found some specific type of yeast works better while brewing, and some works better while making bread. So what kinds of yeast is better for alcohol making? Usually, if the yeast has high alcohol tolerance and good smell, it will be considered as a good "brewing yeast".
Bread yeast normally can't stand high alcohol, therefore we don't use bread yeast for brewing.
3. The difference between dry yeast and wet yeast.
Dry yeast is also called dehydrated granules while wet yeast is also called fresh yeast. Fresh yeast is soft and moist and is mainly used by professionals. It must be refrigerated and the shelf life is about 6 months.
Dry yeast is fresh yeast that has been dried until the moisture content makes the yeast dormant. And its shelf life is about 1 year. There are two ways to use dry yeast, one is prior rehydration, the other is direct pitching. Direct pitching is easier for beginners to start their first batch. The only thing you need to do is pitch the yeast directly into ALCHEMA pitcher and the hydration can be done inside of ALCHEMA pitcher.
4. What is the best temperature range for brewing?
Yeast normally can't live above 116℉ or below 37℉. The rule of thumb about the best temperature range for brewing is between 68℉ to 86℉. If you dive a bit deep regarding this question, you could still find some yeast works better between 44℉ to 55℉ while some works better between 68℉ to 71℉.
ALCHEMA is dedicated to finding yeast that works great at room temperature and through our algorithm, we help you determine when is the best timing to enjoy your drink.
5. How to get rid of the "yeast smell & taste"?
First of all, you have to know there are two reasons why you could taste yeast from your drinks. One is "too much residual yeast", the other is "yeast rupture".
If you have too much residual yeast in your drink, here is what you can do. First is the "refrigerator method", the other is the "freezer method". The idea of "refrigerator method" is to reduce the yeast activity through low-temperature and that could reduce the liquid convection. With low liquid convection, yeast will start settling. Then you can enjoy the clear part on the top of your drink with less yeast taste.
The "freezer method" is similar to one of the processes of champagne making. In such a low temperature, your drink will start crystalized. From room temperature to the freezing point, yeast will settle at the bottom of ALCHEMA pitcher and you could detach the bottom and cut the yeast of easily.
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