What Happens if You Add Too Much Yeast to Beer (Or Can You?)

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When you add too much yeast during the brewing process, chances are good that your beer will be fine. It is difficult to overpitch beer in a way that negatively affects the final product.  

Can you add too much yeast to your homebrew beer?

In reality, it is difficult to overpitch when homebrewing. Even when you do add more yeast than necessary, it is not considered too much as it may change your beer but shouldn’t ruin it. 

A good rule of thumb for homebrewing is to pitch a little more than you think you’ll need. Underpitching will have worse effects and is much easier to do. 

Overpitching can result in faster fermentation which can, in turn, reduce ester production. It can also lead to a dryer beer.  

What happens if you pitch too much yeast in the beer?

Beer styles and yeast strains that you do not want to overpitch

Any beer style that gets most of its flavor from yeast should not be overpitched, including Hefeweizens and Belgian-style Tripels. You should also avoid overpitching ale yeasts such as WLP400. 

Does adding more yeast add more alcohol?

Adding more yeast does not add more alcohol. Yeast consumes sugar to produce alcohol and carbon dioxide. The alcohol content is limited by the amount of sugar in your wort. 

What is the best sugar to use for brewing?

The two best sugars for homebrewing are dextrose and sucrose. These two sugars are 100% fermentable and relatively simple for yeast to consume.  

Does adding more yeast speed up fermentation?

Additional yeast can speed up fermentation because fermentation lasts as long as there are available nutrients. More yeast will consume the nutrients quicker. 

Does adding more yeast make my beer toxic?

Luckily, adding yeast is not a factor that can result in toxic beer. In fact, a good yeast pitch can reduce the chances by speeding up fermentation. 

Keep reading to learn more about What Happens if You Add Too Much Yeast to Beer and more!