What On Earth Is Fast Action Yeast?!

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All you need to know about fast action yeast

fast action yeast

Whether you are an expert baker or you are trying to make bread or other leavened bread for the first time, selecting the right kind of yeast and prepping the baked goods is very important.

Fast action yeast is one of the most used leavening agents in bread or other leavened goodies. Fast action yeast is a fine grain of yeast that seems like a powder. It contains flour improvers and finely powdered dried yeast.

Fast action dried yeast is specially designed to be mixed right into the dough, and only one kneading and one rising are required.

It was introduced in the 1970s. The fast action yeast has a lower moisture content that differentiates it from other varieties of yeast.

Keep reading to learn more about fast-action yeast.

So, What is Fast Action Yeast?

yeast in bread making

Instant yeast is also referred to as fast-acting yeast or quick-rise yeast. It is a dry yeast that is dried quickly than active dry yeast. It is also milled more finely, which was first introduced in the 1970s.

It has a lower moisture content that differentiates it from other varieties of yeast. The best thing about fast action yeast is that you don’t need to wait for it to bloom. Instead, you can mix it directly to your dry ingredients.

It is easy to use but formulated to function on an accelerated timetable. That’s why it might be not suitable for recipes that require a long rise. Some leavened baking recipes need two separate rises, but with fast action yeast, you can bake after one rise.

The Basics - Getting Down With the Yeast

It is highly stable and can be stored in a cool, dark place for up to 12 months. It has constant behaviour over time.

This type of yeast is designed to operate on one rise, but it is not suitable for refrigerated doughs and doughs with slow or long rise. For proofing, add any ingredients like sugar or warm water to the dough along with other ingredients.

How does Instant Yeast work?

It works more rapidly than other varieties of active dry yeast. However, you will not notice the immediate rising of fast action yeast once you mix up.

One thing that makes it stand out that it may reduce the total rising time of dough in half.

The active dry yeast is the best substitute in any dough recipe. If you are curious that does fast action yeast go off; then the answer is very simple. It can last for up to one year.

bread loaf

How to use Instant Yeast?

It can be used for any baking project that calls for yeast.

Its packets are convenient to use as they are portioned into single-use fast action yeast amounts.

If you are a veteran baker and bake often then using a larger quantity of yeast is worth buying. You can store the extra yeast in a zip-close bag or airtight jar for about 12 months.

What it’s used for?

Instant yeast or fast-action yeast looks like dry yeast, but its granules are much smaller than its counterpart. It is used for everyday bread baking and other quick baking projects because you can make leavened bread or dough with just one rise.

Different kinds of yeast

Active Dry Yeast

It is the most common type of yeast that is available in supermarkets. Water is removed from the live yeast and then grinds it into fine granules. It is produced in such a way that bakers can add them directly into the bread dough with other ingredients.

Instant Yeast

This type of yeast is dissolved quickly in the dough. You can also prove it like active dry yeast. You can also add it with the dry ingredients.

Fresh Yeast

bakers yeast

It is also called cake yeast. It is made from a clay-like block. It is also referred to as ‘special occasion yeast’. That’s why it is considered best used for occasions or the holiday season when you need to bake a lot. 

Active Dry vs Instant Yeast

What is the difference between instant yeast and active dry yeast?

Active-dry yeast has a moderate ratio of rising, while instant yeast has a faster rate of rising. Instant dry yeast doesn’t need proofing in the warm water. You can directly add it to dry ingredients. 

FAQ's on Fast Action Yeast

Is active dry yeast the same as fast-acting?

For home bakers, instant yeast and active dry yeast are the most common yeast available in the market. These two yeasts can be used interchangeably in baking. However, the instant yeast is used mixed right into the dough while you need to dissolve active dry yeast needs in water first before using it.

What is fast-acting yeast used for?

The fast action yeast is famous for its fine texture. Moreover, it is activated more quickly. So it is used for making quick baking projects like banana bread, cookies and muffins as it allows you to make leavened bread with one rise.

How do you activate fast action dry yeast?

There are some activating steps that you need to follow to activate fast action dry yeast. First off, sprinkle the dry yeast into some water and let it sit for some time. Wait until it slightly becomes foamy. Don’t take hot water to activate it. You can take slightly warm or room temperature water for this purpose.

How long does fast action yeast last?

The opened packages of fast action yeast last around 3 to 4 months. You can store it in the refrigerator. However, if the yeast is older than three to four months, it may still be good. Add 1 tsp. of sugar and 1/4 cup of warm water and 2 1/4 teaspoons of yeast and proof either your yeast is still active or not.

Can you proof yeast too long?

Dry yeast can last up to 1 year. However, there is no guarantee, but you can test to see if it is still alive. You can prove it, no matter how long it is stored in your refrigerator or pantry.

Can dried yeast go off?

Beyond the ‘best by date’ of dried yeast, it can last for two to four months. The shelf life of dried yeast depends on how it is stored and its best before date. The best by date for dried yeast is at least 2 years after the date it was packaged.

Andy Canter


Ever since I started cooking I’ve been fascinated by how different people’s techniques are and how they best utilise the ingredients around them. Even the person living next door will have their own unique way of frying an egg or cooking a salmon fillet.

This fascination led me on a journey across the globe to discover the countless practices and traditions the world of cooking has to offer. I thought you’d enjoy and find value in sharing that journey with me so I created Cooked Best!