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What quantity and resting time should be preferred for active dry yeast when it is supposed to be used in place of quick yeast?

Please specify in spoons or cups.

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All different types of yeast can be interchanged. What differs is the starting amount required and how quickly they rise, and how they are best activated.

  • Quick or rapid rise yeast activates easily when mixed with your dry ingredients and a hot liquid. Typically the liquid added to the flour mix would be about 120-130°F (49-54°C).
  • Active dry yeast should be activated in a warm (110°F/43°c) liquid for a few minutes.

The two yeasts can be substituted for each other fairly equally by volume or weight.

With live yeast cultures, you must always observe the outcome, or high how the bread rises, not just a prescribed or predicted rise time. Rapid rise yeast will tend to rise somewhat more quickly than active dry yeast, but you need to monitor the progress.

You will find that the very warm ambient temperature that have previously indicated you have where you are makes the yeasts of any type act more quickly than many recipes designed for US room temperatures (with air conditioning) of about 70°F (21°C) predict in any case—this is going to be the more influential factor.

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  • So, if the quick yeast calls for 2 hours resting time, what resting time should I consider for active dry yeast then at 32 Celsius?
    – Aquarius_Girl
    Apr 18, 2013 at 10:46
  • Less. You will have to watch and observe. The recipe should give you a guideline such as "until doubled in size". But it is too dependent on specific conditions for me to give you an exact answer.
    – SAJ14SAJ
    Apr 18, 2013 at 10:49
  • why did you say 'less'? Quick yeast works more quickly than active dry yeast, so shouldn't the dough with ADY take more time to rise?
    – Aquarius_Girl
    Apr 18, 2013 at 10:51
  • Temperature is very important.
    – SAJ14SAJ
    Apr 18, 2013 at 10:51
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    I am sorry, I just cannot tell you the answer because I have never proofed at such high temperatures. I can tell you that of the three factors, type of yeast is by far the least important. Initial amount of yeast is very important for short fermentation; temperature is very important for all fermentation, and dominantly important for long fermentation. Its an exponential growth curve whose exponent increases with temperature, but whose coefficient is related to yeast type. You must look at the result for being done, not how long to expect.
    – SAJ14SAJ
    Apr 18, 2013 at 10:59

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