Lutra is a dried Kveik yeast that is known for its fast fermentation properties. When brewing with Lutra, the fermentation process is typically completed within a relatively short period of time. The exact duration of fermentation can vary depending on the temperature at which it is carried out.
At a temperature of 20°C (68°F), Lutra completes fermentation in approximately 4 days. This means that you can expect the yeast to fully ferment the wort and convert the sugars into alcohol within this time frame. It is important to note that this is just an estimate and actual fermentation time may vary slightly.
If you choose to ferment at a slightly higher temperature of 25°C (77°F) or above, Lutra’s fermentation is even more rapid. In these conditions, the yeast can complete fermentation in around 3 days. This demonstrates the yeast’s ability to work efficiently and produce alcohol at a faster rate when exposed to higher temperatures.
Interestingly, Lutra can also tolerate extremely high temperatures. It has been reported that fermentation with Lutra at temperatures above 37°C (98°F) can still result in complete fermentation within a short period of time. This makes it a suitable choice for brewers who may not have precise temperature control during fermentation or prefer to experiment with warmer fermentation conditions.
In my personal brewing experiences, I have found Lutra to be a reliable and efficient yeast strain. I have used it in various beer styles, including IPAs and pale ales, and have consistently achieved complete fermentation within the suggested time frames. It is worth noting that other factors such as the gravity of the wort, pitching rate, and overall fermentation health can also impact the duration of fermentation.
Lutra yeast typically completes fermentation in 4 days at 20°C (68°F), 3 days at 25°C (77°F) and above, and can even tolerate temperatures above 37°C (98°F). Its fast fermentation properties make it a popular choice for brewers looking for a quick turnaround time in their brewing process.