Check About This Mac to find the version number and build number of your Mac operating system. Knowing the macOS version number can help you determine whether your Mac is up to date or meets the system requirements of other software or devices. Learn how to update the software on your Mac.
What is a pickle? A pickle, at its most broad and basic, is just a vegetable that has been made sour. Pickling refers to the act of souring (or acidifying) something (usually vegetables, but sometimes fruits, eggs and even meats).
Sourdough bread is made by the fermentation of dough using naturally-occurring lactobacilli and yeast. Sourdough bread has a mildly sour taste not present in most breads made with baker's yeast, due to the lactic acid produced by the lactobacilli.rench bakers brought sourdough techniques to Northern California during the California Gold Rush, and it remains a part of the culture of San Francisco today. The nickname remains in  Sourdough Sam , the mascot of the San Francisco 49ers.