Lemon and lime juice can be frozen in ice cube containers.
Q. I was given a lot of lemons and Key limes. Can the juice be frozen? If I can freeze it, what’s the best way to do it?
A. Lemon and lime juice freezes fine. My favorite method is to use plastic ice cube trays. Fill each cavity with 1 or 2 tablespoons. To keep from measuring over and over, use a measuring spoon to see how much water each cavity holds, then fill each one to that level. When the cubes freeze, move them to a resealable plastic freezer bag. That makes it easy to pull out what you want. The cubes should keep around 6 months.
You also can freeze the zest. Grate it off before you juice the fruit and you can freeze it in a little plastic bag, or you can add it to the juice in the ice cube trays to boost the flavor a little more.