[Paul] is sick and tired of his homemade root beer being flat ... There’s the old yeast and sugar trick that takes place inside of a sealed bottle. But this takes time, and if you don’t ...

[Paul] is sick and tired of his homemade root beer being flat ... There’s the old yeast and sugar trick that takes place inside of a sealed bottle. But this takes time, and if you don’t ...

Israeli researchers have unveiled a "breakthrough" beer made from ancient yeast up to 5,000 years old ... The team said it hoped to make the drink available in shops one day.