YEAST COVERSIONS ( How to use yeast interchangeably )
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YEAST COVERSIONS ( How to use yeast interchangeably )
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Baking Yeast, Dry and Fresh Yeast Measurements How to use Instant, Active Dry and Fresh Yeast Interchangeably in Recipes. . I have active dry yeast and the recipe calls for instant or bread machine y
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YEAST COVERSIONS ( How to use yeast interchangeably )

posted at 12/16/2012 9:12 PM EST
Posts: 4948
First: 6/4/2010
Last: 4/30/2013
Baking Yeast, Dry and Fresh Yeast Measurements

How to use Instant, Active Dry and Fresh Yeast Interchangeably in Recipes.

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I have active dry yeast and the recipe calls for instant or bread machine yeast.

Active dry yeast was the common, dry yeast up until the late 20th century. It needs to be rehydrated in liquid before being added to the dough, so use some of the water from the recipe to do this. Often, you can test the yeast with a pinch of sugar as it rehydrates (proofing). If bubbles or foam form on the surface of the liquid within about 10 minutes of adding the water (110 - 115°F) and stirring, your yeast is still alive.
Active dry yeast is commonly packaged in small envelopes in grocery stores in the US and Europe. It is not as concentrated as instant yeast so you need more active dry yeast when substituting.
  • 1 package active dry yeast = about 2 1/4 teaspoons = 1/4 ounce = 7 grams
To use active dry yeast instead of instant (bread machine) yeast in a recipe, multiply the amount of yeast by 1.25.
  • 1 teaspoon instant (bread machine) yeast = 1 1/4 teaspoon active dry yeast.
  • 1 teaspoon active dry yeast = 3/4 teaspoon instant yeast.
  • 1 package instant yeast (2 1/4 teaspoons or 7 grams) = 1 1/4 package active dry yeast (2 4/5 teaspoons or almost 9 grams).

I have instant yeast and the recipe calls for active dry yeast.

Instant yeast, also known as Fast Rising, Rapid Rise, Quick Rise, and/or Bread Machine Yeast (US brand names SAF or Fleischmann's, German brand names RUF and Dr. Oetker), is a clone of yeast with slightly different attributes than the good-old, active dry yeast. It absorbs water a bit quicker so the little yeast cells can get their machinery going quickly, enhancing the bread's rise. The dried yeast is also made into much finer particles, again hastening rehydration.
Instant yeast is usually more expensive and can be directly added to the dry ingredients without rehydrating or proofing first. Because the dry ingredients absorb some of the heat from the lukewarm water, you can use water that is somewhat hotter, 120 to 130°F, to make your dough unless the recipe calls for colder water (delayed rise). You may choose to proof this yeast if it is older or past its expiration date. Use some of the liquid for the recipe to do this.
  • Multiply the amount of active dry yeast in the recipe by 0.75 to figure out how much instant yeast you should use.
  • 1 package active dry yeast (2 1/4 teaspoons) = 1 2/3 teaspoons instant yeast.
  • 1 teaspoon active dry yeast = 3/4 teaspoon instant yeast.

The recipe calls for fresh yeast and I only have dry yeast available.

Fresh yeast, also known as cake yeast (because it is pressed into a cake or block) or compressed yeast, is a lovely product. It enhances baked goods with a subtly yeasty, flowery aroma that dry yeast does not. It may respond a bit quicker than active dry yeast, but the difference is minimal. Beyond that, yeast functions in the same way, whether fresh or dried.
Fresh yeast has been grown in a nutrient broth, the broth then is removed through centrifugation and the yeast is packed very tightly into small squares. It has a short shelf life of a few weeks, compared to months or even years (in the freezer) for dried yeast. Fresh yeast is more expensive than dried yeast and unavailable in many areas in the US. It is often used in bakeries.
In Germany, fresh yeast comes in 40 gram packages (about 1.5 ounces), enough to make 500 grams (1.1 pound) of white flour rise in about one hour. In the US, 0.6 and 2 ounce packages are sold (17 grams and 56 grams) in the refrigerated section (near the milk and butter).
Because fresh yeast has moisture in it, you should use 3 times the fresh yeast in weight for the same rising ability of instant yeast and 2.5 times the amount for active dry yeast.
  • 7 grams instant yeast = 1/4 ounce instant yeast = 2 1/4 teaspoons instant yeast = 21 grams fresh yeast or 1 1/4 blocks (0.6 ounce size) or about 1/2 block (2 ounce size) fresh yeast.
  • 1 teaspoon instant yeast (3 grams) = 1/2 block (0.6 ounce size) fresh yeast.
  • 7 grams of active dry yeast = 2 1/4 teaspoons active dry yeast = 17.5 grams fresh yeast = 1 block (0.6 ounce size) or 1/3 block (2 ounce size) of fresh yeast.
  • 1 teaspoon active dry yeast = 1/3 block (0.6 ounce size) of fresh yeast.
Proof fresh yeast by crumbling it into warm water (110°F) with a pinch of sugar. Stir to dissolve. Wait ten minutes and check for foam building.
To use fresh yeast in a recipe, you can make a well in the center of the dry ingredients, crumble the fresh yeast into the middle, cover with warm liquids and stir up a little of the dry ingredients into the liquids. Wait until bubbles form, then continue mixing.
You may also dissolve fresh yeast in a little of your liquid and add it to the bowl with the rest of the liquids. Proceed as usual with kneading and proofing. Always soften or dissolve fresh yeast in liquids before mixing or it will not distribute evenly throughout the dough.



Re: YEAST COVERSIONS ( How to use yeast interchangeably )

posted at 12/16/2012 10:08 PM EST
Posts: 1826
First: 9/9/2008
Last: 4/22/2014
Thanks for the info Gale.  I don't do much yeast baking anymore but the way things are going, you never know when you need to know how to do it right.

Re: YEAST COVERSIONS ( How to use yeast interchangeably )

posted at 12/16/2012 10:19 PM EST
Posts: 7309
First: 6/23/2010
Last: 4/23/2014
Thank you Gale --- very interesting reading.    I've copied and printed that to keep in my recipe box.

Re: YEAST COVERSIONS ( How to use yeast interchangeably )

posted at 12/16/2012 10:42 PM EST
Posts: 4948
First: 6/4/2010
Last: 4/30/2013
Your're very welcome I'm posting a couple more great charts that I was given and store in my files.I hope they prove tp be useful to you.

Re: YEAST COVERSIONS ( How to use yeast interchangeably )

posted at 12/17/2012 2:33 AM EST
Posts: 1627
First: 8/9/2008
Last: 6/11/2013
Gale,  Thank you so much for the yeast conversions. I started to use
yeast again this year. I haven't for many years. I really enjoy it now.
The smell and taste is totally awesome and hubby is really happy.

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