A tradition that has stood the test of time in Canada and the United States is a love for the yeast-brewed, amber, foamy liquid known universally as beer. It doesn't matter where you are in these countries, you can always be sure to find at least one place where you can grab a pint, mug, bottle or can. The microbial manufacturer responsible for beer, yeast, loves to evolve. Many strains have changed over the years as have the tastes of their final outcomes. However, there is one strain of yeast that has remained exactly the same for over 100 years.