How many types of Yeasts are there?
There are many types of yeasts around us. However, it is very important to mention that only one type is used in baking bread, and this type comes in different forms:
Dry Yeast: This type of yeast looks just like small pallets. It needs to be re-activated before using it. It is preferably meted in warm water and a small part of sugar to increase the fermentation process and make sure it is totally melted in the dough.
Instant Yeast: It has smaller particles compared to the dry one. It can be mixed directly with flour pre-activating it and needs less time to start working than the instant one, it’s very important to know that it is not a pure type yeast, as it includes some additives which are something very important to consider when you choose the type of yeast you want to use.
Fresh Yeast: It comes as a stiff paste that is crumbly and contains a big amount of water, it has a short shelf life which does not exceed one month, and has to be stored in the freezer.
Often bought from the bakeries and can’t be found in the supermarkets, at least in Amman.
Naturally Cultured Yeast (Wild Yeast): As mentioned before, yeast is everywhere, we just give it a proper environment and keep feeding it to grow, you may start with a similar amount of flour and water and preferably unbleached flour, rye, or whole wheat.
Some people say five days are enough to build and grow your own yeast, while others prefer to keep it up to 14 days.