Brewer’s yeast vs. Baker’s yeast vs. Nutritional yeast. are they different?

8 Mar

Another random post hit ;p

Are brewer’s, baker’s, nutritional yeast different?

Yes, they are different!

Brewer’s yeast is a brewery-by-product, which is made from the pulverized (ground to very small particles) cells of Saccharomyces cerevisiae (yeast) and dried at high temperatures. Brewer’s yeast do not contribute to leavening because the yeast had been killed.

It is bitter in taste and normally used as a nutrient supplement as it is a source of B-complex vitamins, amino acids, calcium, phosphorus, potassium, chromium, and other nutrients.

On the other hand, baker’s yeast is dried at low temperatures so the yeast are not killed. It is used for leavening bread and other baked goods. The yeast species vary from Saccharomyces cerevisiae, Candida milleri to Lactobacillus sanfrancisco (which is normally for sourdough breads).

And what about nutritional yeast? It is yeast which specifically grown for supplement. The form could be in powder or flake. It is sweet, nutty and cheesy because it is grown on a molasses solution (concentrated extracted juices of sugar cane and/or sugar beets). Nutritional yeast is close to brewer’s yeast, as it is also dried at high temperature, resulting in inactive yeast. It also has similar nutrient profile to brewer’s yeast, however more than 3tbsp/day may raise uric acid levels.

Australian Vegemite is a concentrated yeast extract. I couldn’t find anywhere on its website if it’s brewer’s or nutritional yeast. Vegemite contains rich sources of thiamine, 25% RDI of riboflavin and niacin, 50%RDI of folate. It is suitable for vegetarian and kosher. It is also halal-certified. For further information, you could check out Kraft Vegemite website.

References:

BROWN, A. 2004. Understanding Food Principles and Preparation, Thomson Wadsworth.

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4 Responses to “Brewer’s yeast vs. Baker’s yeast vs. Nutritional yeast. are they different?”

  1. Andrea Leong June 26, 2012 at 11:20 pm #

    Hi, I also couldn’t find which species of yeast is used in Vegemite, but it was developed as a way to use the by-products of brewing, so must’ve been brewer’s yeast originally. And I like to think we drink enough beer in Australia to fuel Vegemite production the old-fashioned way 🙂

  2. laurenkatharine7 June 1, 2013 at 10:18 am #

    Great information! I need to go find myself some Brewer’s yeast!

  3. Claire April 27, 2014 at 10:36 pm #

    If I have an intolerance to brewers yeast but not bakers yeast,does it mean I will then more than likely also have an intolerance to nutritional yeast?

    • Dea April 29, 2014 at 12:16 pm #

      Hi Claire, for an individual advice that is suitable for you, it’s best to consult a professional, who can take into consideration everything that can possibly contribute to your intolerances.

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