Bourbon, Whiskey, Vodka and Moonshine - How Much Yeast?

This blog provides information for educational purposes only. Read our complete summary for more info.

We get a lot of questions about yeast. Everyone seems to want to know how much yeast is needed for making 5 or 10 gallons of mash. For those that have read The Best Yeasts for Distilling, it's obvious we are very fond of bread yeast. We have found over the years that bread yeast can easily produce as much alcohol as other yeasts if used correctly.

The question we hear a lot is "How much yeast do I need for the ____ recipe?" The answer is "It Depends." Every type of yeast is slightly different. In general, yeast can be categorized into three different groups: champagne & beer yeast, distillers yeast, and bread yeast. Use the following guidelines for measuring the quantity of yeast that is added to a mash.

Before we get started, a reminder: Distilling alcohol is illegal without a federal fuel alcohol or distilled spirit plant permit as well as relevant state permits. Our distillation equipment is designed for legal uses only and the information in this article is for educational purposes only. Please read our complete legal summary for more information on the legalities of distillation.
 

Champagne or Beer Yeast

Whiskey mash with Bread Yeast When using a champagne or beer yeast it will have directions on the packet. Every champagnebeer yeast we have ever used is packaged to ferment 5 gallons of beer. When using champagne/beer yeast use 1 packet for every 5 gallons of mash.

Distillers Yeast

When using distillers yeast follow the directions on the packet.  If there are no directions we suggest 1 tablespoon of yeast per 5 gallons of mash.

Bread Yeast

When using bread yeast we have had great results with Fleischmann's bread yeast over the years. Bread yeast can be bought in packet form or in 1-2 pound bulk packages. It is normally cheaper to buy in bulk but it is more convenient to store the yeast in packets. We prefer packets and can justify the slight cost increase for the convenience/storage factor. Just follow the steps we have outlined below in order have great results using bread yeast.

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    Create a simple yeast starter for 5 gallons of mash

    1. Add 1/2 cup of 110 degree water to a sanitized jar.
    2. Add 2 teaspoons of sugar to the water and mix thoroughly.
    3. Add 2 packets of yeast (14 grams or 1 tablespoon if using bulk yeast).
    4. Swirl the glass to mix in the yeast with the sugar water.
    5. Let the glass sit for 20 minutes and it will double in size.
    6. Once the starter has doubled in size add it to the mash and aerate. 

     

    To learn more about yeast and fermentation check out our article on "Fermentation and Yeast".

    Remember, it is illegal to distill alcohol at home for consumption. Do not do this.

     

     

    Portrait of Emmet Leahy

    Emmet Leahy is the Chief Operating Officer and lead product developer at Clawhammer Supply, a small scale distillation and brewing equipment company. He loves the process of developing new equipment for making beer at home just as much as he does using it to brew his own beer. He's also passionate about teaching people how to use distillation equipment to produce distilled water, essential oils, and with the proper permits, fuel alcohol and distilled spirits.

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    59 Comments

    • S
      Comment Author: shane

      Hi Emmet

      I still haven’t seen in the blogs how much yeast to use ? The best i can see or work out is 10 grams per litre of mash. I was using turbo but have just started my first one with bread yeast . I will let you know how it goes.

      Cheers Shane

    • M
      Comment Author: Mark

      this is the first time distilling i thought i go with a simple sugar shine batch to start with your recipe calls 5 gallons of water and 8 pounds of white sugar nothing is stated about yeast i read about the starter yeast please give my a little more detail from there do i add the starter to the 5 gallons of 70 degree and the 8 pounds of sugar a little more step by step please i plan on using bread yeast is that a good starting place?

    • R
      Comment Author: radian

      I have trouble on my bread yeast and sugar fermEntation , anyone please help me, I TRY TO FERMENT 5liters of water on 2 kilo gram of sugar,1 table spoon of yeast .. I wait almost 5 hours but still there no bubble on my airlock and then I leave it and then I wait again days, but still my theres no bubble showing and no foam forming inside the fermentor bottle .. now its almost two weeks now still the same ..am I going to throwthis and change a new one? Guys please help me ,, any suggestion please coz I dont want to waste … one question .. I am FERMENTing sugar wine for almost a month now but still no foam and bubbles come out and it has still noise on the fermentor bottle if im going to distilled this still it can produce alcohol?

    • R
      Comment Author: Robin

      Hi Guys
      I’m a novice at this and enjoy all the questions, but there are no answer
      Would really be nice

    • G
      Comment Author: glen

      how much bread yeast tomato paste and how much lemon for 5 gallons