Can nutritional yeast go bad?

In this article, we will answer the question “Can nutritional yeast go bad?”, and how to store nutritional yeast?

Can nutritional yeast go bad?

An unopened package of nutritional yeast won’t go bad unless exposed to heat, temperature fluctuations, or moisture. Nutritional yeast has a pretty long shelf-life i.e 24 months. Do not use nutritional yeast past this timeline even If the package was unopened. 

When stored in the fridge, nutritional yeast will be good to use even 2-4 months past its expiry. Read on If you want to know how to store nutritinla yeast.

How to tell If nutritional yeast has gone bad?

  • If the nutritional yeast develops a darker color than its usual light yellow color, It has gone bad.
  • If the yeast has started to clump, It is a sign It has gone bad.
  • A bitter taste is also a solid sign that your nutritional yeast has spoiled.

How to store nutritional yeast?

The rule of thumb is to always keep the nutritional yeast in an air-tight container, away from moisture and heat. 

For this, you can use a tupperware containers, glass jar, zip-lock plastic bags or freezer bags etc. keep the container in a dark place like the pantry or a cupboard. You can also keep it in the fridge. 

After opening, do not keep the nutritional yeast in the non-resealable bag. Instead, transfer it to a dry and sterilized glass container with a tight lid.

I bought in a plastic container, keep it as it is in the pantry like other spices or put it in the freezer to keep it around for longer.

All you need to know about nutritional yeast

Nutritional yeast is a different strain of S.cereviseae that comes in its deactivated form and is entirely used for its nutritional benefits. It is also known as ‘nooch’ and is hailed among vegans for its cheesy taste. The glutamic acid present in nutritional yeast gives it a rich umami flavor.

After harvesting, this strain of yeast is exposed to heat to deactivate the cells and then dried and packaged. Nutritional yeast also comes in the fortified form where additional vitamins or nutrients are added to improve its nutritional profile.

How to use nutritional yeast in recipes?

Add it to your pasta, soups, vegetables, sauces, crackers, eggs, nachos, or even popcorns for a cheesy flavor and nutrient boost. It is also added to pet food to improve its nutritional profile.

  • Sprinkle over your risotto, mac-n-cheese, or any other pasta where you use parmesan.
  • Add to your soups or sauces as a thickening agent.
  • Use it to make whole wheat bread to add extra flavor and make it nutrient-dense.
  • Add it in vegan mozzarella and gouda cheese for a cheesy flavor.
  • Sprinkle it on top of roasted vegetables or add in mashed potatoes.

Other FAQs about Yeast which you may be interested in.

How many tablespoons of yeast are in a packet?

Where can I find fresh yeast?

Health benefits of nutritional yeast

  1. Nutritional yeast is considered a complete protein source because of the presence of the nine essential amino acids.
  2. Only a Tbsp of nutritional yeast provides 30-180% of RDI for B vitamins. Vitamin B12 is essential for cognitive functions, energy metabolism, and erythropoiesis. Hence, nutritional yeast helps prevent B12 deficiency which is very prevalent in vegans.
  3. Anti-oxidants like glutathione and selenomethionine present in nutritional yeast protect the cells against oxidative damage.
  4. The carbohydrates, beta-glucan and alpha-manan, present in nutritional yeast boost immune health by preventing Ecoli and Salmonella infections.
  5. Beta-glucan has also been found to lower the bad cholesterol levels in the blood.

Can you bake bread with nutritional yeast?

No, bread cannot be baked using nutritional yeast in place of baker’s yeast. Both these types of yeast are strains of Saccharomyces cerevisiae but have a different end-use. Baker’s yeast is alive when bought and produces carbon dioxide as a by-product of fermentation when added to bread or activated in warm water and sugar.

What is baker’s yeast?

Baker’s yeast gets its name from its wide applications in the baking industry. It is manufactured in the dormant form and is added to food where it acts as a leavening agent. The fermentable sugars present in food act as food for yeast. Yeast converts these sugars into alcohol and carbon dioxide giving the bread a rich yeasty flavor. Carbon dioxide is what traps within the bread and causes it to rise while baking.


In this article, we answered the question “Can nutritional yeast go bad?”, and how to store nutritional yeast?