I used to have a small baking business. I still bake a fair amount of bread, all with my own personal recipes. I use only quality ingredients, and raw honey for the sweetener. Saf is the best yeast, better than the other two major companies. This is granulated yeast, and you measure it by the teaspoonful. I keep mine in the freezer in a tight plastic container, and use it directly from the freezer, putting the container right back in. I used to buy this yeast from the big famous baking catalog, but I'm so happy that it's available on Amazon. I buy everything from Amazon! At this point in my life, I just use the Zo bread machines to bake my bread. They tell you to put the dry yeast granules on the top of all the other ingredients, but I don't follow those directions. I always "proof" my yeast, which gives it a head start, by letting it sit for 10 minutes or so in the warm liquid with a little bit of honey, before adding the other ingredients. If you're going to go to the trouble of making homemade bread, please use good yeast.