Instant Yeast, also known as “fast-rising” or “fast-acting” dry yeast, can shorten the rising time in traditional baking by as much as 50%.As you can see, this yeast is also milled into finer particles. Because of this, it dissolves faster and activates quickly.Instant yeast may also be marketed and sold as rapid- or quick-rise yeast. This yeast has also been milled into smaller particles so it doesn't need to be dissolved into water. In addition, enzymes and other additives are included to make the dough rise faster. With this yeast, you can skip the first rise of the dough and shape the loaves right after kneading.