Things You'll Need Plastic Bottle (2 Litre) Cling Film or washing up glove Rubber Bands Funnel (recommended) Ingredients 1 litre water 250 ml of carton apple juice (not from concentrate or added anything) 1 cup sugar 1 pkg (6 g) active dry yeast. Steps PREPARATION OF THE MUST The must is the mixture of ingredients you mix prior to the fermentation that will eventually become your cider. Take your 2 litre plastic bottle and fill it with 250 ml of carton apple juice and 1 litre of water. Mix in your sugar. Sugar is used to boost the metabolism of the yeast and increase the alcohol content. It is best to use your own judgement as per how much of each to add as long as they're both completely dissolved. If desired, cinnamon can be mixed into the must. Make sure all the ingredients in the bottle's must are completely dissolved. PREPARATION OF THE YEAST AND STARTING FERMENTATION You're using dry baking yeast, rehydrate it in a shallow dish with a little water and sugar. 10-15 minutes should be sufficient. Add the yeast to the must and mix in! Add your 'SIMPLE LOCK': Instead of unnecessary brewer's locks/equipment, make a 'simple lock' to allow the gases from the fermentation to vent. This is easily made with cling film or rubber glove and a rubber band. Either: A)Loosely cover the top of your bottle with a piece of cling film and stretch the rubber band around the neck to keep it in place. Make sure the rubber band's seal is loose enough to allow the gases to vent out (THIS IS KEY). B) Put the glove over the end of the bottle and secure tightly with the elastic band, then cut off the top of one finger to allow the gases to vent out (THIS IS KEY). Wait for the initial burst of fermentation to finish. With this method, it usually lasts 3 days to a week, but varies. Typically, it goes quite fast, especially if your rehydrate your yeast before adding it. RACKING After the yeast falls out of solution (you will see it collected at the bottom), pour the cider into your second bottle with the funnel. Try to keep as much of the yeast that has fallen out of solution in the first bottle. Usually, it is necessary to place a second 'simple lock' on the second bottle as fermentation may continue. At this point the cider is drinkable! Congratulations!
For the record I haven't tied this but the principle is all there and reports from the home-brewing forums say it works well, but not like the real thing.