cider

I can report that 2l of cheap apple juice, 2 tablespoons of sugar to feed the yeast, said yeast, and 4 days produce something that tastes vaguely cidery and has a kick like the proverbial mule.

Next I'll try their "fruitier" yeast in search of taste.

And I must see if I can produce ginger beer. Should be possible to get good tasting with a suitable recipe.