If you’re using a jar of a different size, prepare enough apples to fill it ¾ full. [2] X Trustworthy Source Penn State Extension Educational organization dedicated to delivering science-based information to people, businesses, and communities Go to source

For the best results, use filtered water that’s free of any impurities that might affect your cider.

If you notice any scum forming on top of the jar, skim it off and discard it. [7] X Research source Also, taste your cider once every couple days by dipping a spoon into the mixture. Look for a sweet but tangy taste, but wait for more or less time depending on your preference.

During this time, you’ll see a solid film form on the surface. This is the vinegar “mother,” which is a solid formed in fermenting liquids that helps fermentation along. [9] X Trustworthy Source Penn State Extension Educational organization dedicated to delivering science-based information to people, businesses, and communities Go to source

If you like, let your vinegar ferment for another few days before straining, to let it develop a stronger flavor.

If you opt not to use these, use a sweet apple variety like Fuji apples, and mash your apple pieces before adding them to the jar. [14] X Trustworthy Source Penn State Extension Educational organization dedicated to delivering science-based information to people, businesses, and communities Go to source

Flies and other bugs are attracted to the sweetness of the vinegar, and will get caught in the dish soap mixture.

If you have particularly sensitive skin, dilute the toner with 3 or even 4 parts water, as needed.