I've done multiple beers, wines, all grains, malts, meeds....... with no problems. However, yesterday I decided to goof around and make a quick apple cider.
I took a gallon of cider, added maybe a pound of sugar (dissolved in warm water) and mixed in some wine yeast (can go to 18%)... mixed things up, measured an OG of 1.9, and put an air-lock on. Pretty basic...fructose, sucrose water and yeast. Okay....but 24 hours later, I'm getting no CO2, thus no conversion of sugar to ethanol and co2. ?? This is such a simple recipe and I was just something to mess around with for fun....I can't figure out what's going on. I know the yeast is good as I've got 15 gallons of various libations fermenting in the garage using the same yeast.