I don't refrigerate mine because I am afraid it will absorb moisture and spoil.
I bought it from a bulk bin that was neither refrigerated not airtight, but i keep it in an airtight container.
You don't have to refrigerate yeast, but doing so will help keep it fresh longer.
okay well im pretty sure that yeast is pretty nutritional
Nutritional yeast is a form of deactivated yeast called "saccharomyces cerevisiae." It is made by mixing sugarcane and beet molasses, then harvesting, washing, drying and packaging the yeast.
Nutritional yeast is special because it is a deactivated yeast which is sold in stores as a food product. It is a popular health food, especially for vegetarians.
nutritional yeast similar to brewer's yeast,is a nutritional supplement with vegans, excellent source of protein and vitamins low in fat and sodium.it's has a nutty,cheesy,creamy flavor. Nutritional yeast is different from yeast extract which has a very strong flavor and comes in the form of dark brown paste Also, nutritional yeast, such as the brewer's yeast that you buy in health food stores, has been "de-activated". Therefore it can not be used in bread or wine making.
At a homebrewing shop.
Brewers yeast is added to pet food for its nutritional value, since it is a good source of protein and several of the B vitamins. Bakers yeast would not provide the same nutritional benefits, so it should not be substituted for brewers yeast.
Yeast is used in nutritional supplements is popular with vegans and the health conscious, it is often referred to as "nutritional yeast". It is a deactivated yeast, and is an excellent source of protein and vitamins, especially the B-complex vitamins, whose functions are related to metabolism as well as other minerals.
Yeast is used to leaven bread and other yeast doughs. Powdered or "dry yeast" can be stored without refrigeration and is more convenient than cakes of moist yeast.
Right now, I'm drinking soy milk with a tablespoon of nutritional yeast mixed in. Besides the yeast sort of separating and clumping, there doesn't seem to be any curdling, and it's delicious to boot.
There are several types of yeast. Nutritional yeast has protein, dietary fiber, and carbohydrates. Baking or leavening yeast has some of these as well but less. Check out related links for a nutrition table for leavening yeast.
Look into a nutritional database to find out:http://www.nutritiondata.com/
Envita yeast powder is the best brand of edible nutritional yeast in the market.although it appears to be scarce these days,it can be sourced through the website by contacting the info service.