Does Salt Kill Yeast?

Online Answer
Salt does retard yeast growth, and in concentrations that are too high, it can indeed kill the yeast. ... If you ever make a dough without salt, you'll notice a lot more, and faster, rise and after baking, you'll see large, irregular holes in the bread where the yeast just got carried away.
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Active-dry yeast is the variety that the majority of recipes call for. ... By comparison, instant dry yeast does not need to be proofed in warm water and can be directly added to dry ingredients such as flour and salt. Instant yeast particles are smaller, which allows them to dissolve more quickly.
For this reason, it's used to leaven quick types of bread like pancakes, cornbread, biscuits, and cakes. In baked goods, you can replace yeast with an equal amount of baking powder. Just keep in mind that the leavening effects of baking powder will not be as distinct as those of yeast.
Sadly alcohol actually destroys enzymes and kills the yeast cell if in high concentrations. This happens at different levels for different strains of yeast. Brewers yeast cannot withstand much beyond 5 or 6% Alcohol by volume. Wine yeast is more tolerant at a range of 10 - 15%..
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There are issues with natural yeast and bateria in the fruit. Freezing it will kill most of these. ... The freezing will also break up the cell walls of the fruit allowing you to extract more flavor..