Start by sterilizing your jars to ensure the freshness of your homemade peach jam. Place clean jars and lids in a pot of boiling water for 10 minutes, then drain and set them aside to dry.

Select fresh, ripe peaches and peel them using a knife or vegetable peeler. Chop the peaches into small, bite-sized pieces, about ¼ inch each, and place them in a large mixing bowl.

In a large pot, combine the chopped peaches with the desired amount of sugar and freshly squeezed lemon juice. If you prefer a firmer texture, feel free to add pectin as well. Gently stir the mixture until the sugar begins to dissolve.

Place the pot over medium heat and bring the mixture to a rolling boil, stirring frequently to prevent sticking. Allow it to boil for about 10-15 minutes, skim off any foam that forms on the surface.

To ensure your peach jam is ready, perform the 'plate test.' Drop a spoonful of the jam on a chilled plate and run your finger through it.

Carefully ladle the hot peach jam into the sterilized jars, leaving about ¼ inch of headspace at the top. Seal the jars with sterilized lids while the jam is still hot.

Let the jars cool to room temperature, which usually takes about 1-2 hours. Once cooled, check that each lid has sealed properly.