There’s the old yeast and sugar trick that takes place ... [Paul] himself has tried the dry ice in a cooler full of root beer method. The problem is that the cooler isn’t pressurized so ...

With their help, he created the first powdered root beer, which consumers were to mix with yeast, sugar, and water. That version eliminated the laxative effect that had plagued the original recipe.

"I'll never forget it," he says. Her recipe was pretty standard — root beer syrup, sugar, yeast (all brought to her by boat) and the secret ingredient — cold lake water. The sparkle came from ...

IKOMA, Nara Prefecture--For a craft beer with a kick, researchers at a national graduate school university here helped develop a special yeast with high fermentation performance. The team members ...