|
|
Types of Yeast
What is Nutritional Yeast?
Nutritional Yeast is powdered yeast without leavening power, marketed for its protein and vitamin content. This type of yeast is available in both powder and pill form.
How nutritional yeast is made
"Cream yeast" is heated by means of a heat exchanger and held at pasteurization temperatures for a period long enough to kill the yeast. During this holding period, all necessary vitamins are added to meet the requirements of the specific type of nutritional yeast produced.
The yeast is then drum dried before it is ground and shipped to consumers. The drying process assures that all the cells are killed in order for the full nutritional benefits to be available.
The Basic Nutritional Yeast Making Process
A) "Seed yeast" is grown in small flasks
B) "Seed yeast" is transferred to 1,000 gallon tanks for fermentation (becomes "stock yeast").
C) Alcohol from fermentation separated from "stock yeast"
D) "Stock yeast" moved to refrigerated tanks ("Trade Fermenter") for fermentation cultivation
E) Sterilized molasses, air and nutrients are added to "stock yeast"
F) When yeast is ready to be harvested, fermented yeast liquid is passed through a "Separator" to produce "cream yeast"
G) "Cream yeast" is heated and pasteurized, necessary vitamins are added
H) Vitamin-enhanced "cream yeast" is cooled
I) "Cream yeast" is drum dried
J) "Cream yeast" is put through a grinder to produce a fine powder
K) Nutritional yeast is packaged and ready for shipping
This diagram is available in Adobe PDF format.
Please click here to access our "Image Library".
Click here to learn about "Brewer’s Yeast"
|
|
