A temperature of 65 degrees C is often used to kill yeast completely in alcoholic drinks.
Beyond 60 degrees most common biological enzymes will denature (bodily enzymes may denature as low as 45 degrees, for example).
You could heat your solution much higher...but you risk destroying other things in the solution that you may want (like flavourings).
Yeast typically dies at temperatures above 140F (60C).
Yeast typically dies and becomes inactive at temperatures above 140F (60C).
Yes, yeast can survive freezing temperatures.
Yeast typically respires most efficiently at temperatures between 25-35°C (77-95°F). Higher temperatures can cause yeast to become less active or die, while lower temperatures can slow down the respiration process.
Yeast need warm temperatures in order to grow. The perfect temperature for yeast is about 110 degrees F. Yeast will not start to reproduce and rise without warm temperatures to activate it.
Yeast requires an optimal temperature range of around 75-95°F (24-35°C) to be most active. At temperatures that are too hot, the yeast may become too active and die, while at temperatures that are too cold, the yeast activity slows down significantly. Both scenarios can hinder the yeast's ability to produce carbon dioxide gas that causes dough to rise.
The temperature of a yeast environment will have to be at 100 degrees Fahrenheit. Warmer temperatures will start to kill off the yeast, while colder temperatures will make it go dormant.
Yeast typically dies at temperatures above 140F (60C).
The main types of beer yeast used in brewing are ale yeast and lager yeast. Ale yeast ferments at warmer temperatures and produces fruity and complex flavors, while lager yeast ferments at cooler temperatures and creates clean and crisp flavors.
Yeast fermentation stops producing carbon dioxide when either all the available sugars have been consumed or when environmental conditions become unfavorable for yeast growth, such as high alcohol concentrations or low temperatures.
A lager is fermented at relatively cooler temperatures using bottom-fermenting yeast. Compare to an ale, which uses top-fermenting yeast at warmer temperatures. Clarification is the precipitation of the yeast from the finished brew.
True Lager is distinguished from ale by its yeast. Lager yeast ferments at lower temperatures and flocculates on the bottom of the fermenting vessel, while ale yeast ferments at higher temperatures and settles on the tops of fermentation tanks.