Water slow to heat up? We speed that up by getting hooked up with a tankless heater thanks to advice from First-Mag-Sciencey-Biologist-Guy Arthur Rudolph. Next, you'll need all fingers and toes because we're going to check our yeast by counting cells (yea, homebrewers can do that!), and we'll do it in the most sciencey way possible of course. One Saccharomyces cerevisiae cell...Two Saccharomyces cerevisiae cell...Ah Ah Ah!