# How to Prepare:
01 - Wash guavas thoroughly under running water. Cut them into quarters, leaving skins and seeds intact for maximum pectin extraction.
02 - Place guava quarters in a large saucepan with 4 cups water. Bring to a boil over medium heat, then reduce heat and simmer for 30 minutes until fruit is very soft.
03 - Line a large strainer with double-layered cheesecloth and set over a bowl. Pour cooked fruit and liquid into strainer. Allow to drip undisturbed for at least 2 hours or overnight. Do not press or squeeze the fruit to maintain clarity.
04 - Measure extracted juice and pour into a clean saucepan. Add lemon juice and stir in an equal volume of sugar. For example, if you have 2 cups juice, add 2 cups sugar.
05 - Bring mixture to a boil over high heat, stirring continuously until sugar completely dissolves.
06 - Boil rapidly for 15-20 minutes until mixture reaches 220°F on a candy thermometer. Skim off foam as it rises to the surface.
07 - Place a small spoonful of jelly on a cold plate. If the surface wrinkles when pushed with your finger, the jelly has reached proper gel stage.
08 - Pour hot jelly into sterilized jars, leaving 1/4-inch headspace from the rim. Seal jars immediately with lids.
09 - Allow jelly to cool completely at room temperature before transferring to a cool, dark storage location.