Deciphering yeast data sheets
This week we immerse ourselves in the fascinating world of yeast, that small but powerful microorganism that transforms the sweet nectar of the must into a bubbly and tasty drink. But what is behind the data sheets that accompany these yeasts? Here I will tell you how to make the most of this valuable information.
The essential: basic yeast data
The yeast laboratories do not skimp in details, and although they all offer a basic principle, some go further. Let’s look at the parameters you should take into account:
How much sugar is leaving? Attenuation
This parameter, known as apparent attenuation, indicates what percentage of sugars will become alcohol. If you are looking for a crispy beer, yeasts with high attenuation are your best ally, because they will leave your drink less sweet.
Heat imports: temperature range
Each yeast has its ideal temperature to ferment as a star. If you pass heat, you could get a flavor fiasco, while if you cooled too much, yeast can simply take a long vacation.
Going down to the background: flocculation
The flocculation refers to the speed with which the yeast sits once the fermentation is finished. Those with a high flocculation behave as models to follow, while those with low have their own rhythm.
Alcohol tolerance: Not everyone can handle it!
Some yeasts are like marathon runners, while others prefer Sprint. Alcohol tolerance is crucial to know if your yeast can support the alcoholic content you are looking for.
The unknown world: Advanced yeast data
As we deepen, we find jewels that few know. More advanced tasks have access to these data, which are obtained by fermenting specific style beers.
Key compounds: What aromas will they bring?
Esteres such as isoamyl alcohol contribute to these subtle fruit touches. A little acetaldehyde can give your beer a green apple flash, while an excess could result in problems. Less is more!
The fermentation process: clock in hand
Knowing how long it takes for yeast to reach half of your work is essential for a producer. It allows you to anticipate the waiting time on the way to beer perfection.
How to compare yeasts?
The aforementioned information is not only useful to better understand your yeast, but you can also compare it to others. In advanced beer design courses, we explore ways to use this information to make smarter selections and avoid unpleasant surprises.
Final reflections
Submerging in the world of yeast is not only a ritual for brewers, but an exciting trip full of discoveries. As you venture to mix and try, remember that each choice counts and can transform your beer into a masterpiece. To continue with fermentation, comrades!
