Yes, you can absolutely freeze lemon juice! It's a great way to preserve extra lemons and have fresh juice on hand for recipes later.
How to Freeze Lemon Juice
The most common and recommended method is freezing lemon juice in ice cube trays.
- Juice your lemons: Squeeze the juice from your lemons into a container.
- Fill ice cube trays: Pour the lemon juice into ice cube trays.
- Freeze: Place the trays in your freezer until the juice is solid.
- Transfer to freezer bags: Once frozen, pop the lemon juice cubes out of the trays and transfer them to a freezer-safe zip-top bag for longer storage.
Several sources confirm this method: America's Test Kitchen recommends this for preserving lemons and using the juice later in sauces. (https://www.americastestkitchen.com/articles/5162-save-your-precious-lemons-freeze-the-juice-in-ice-cube-trays) Natasha's Kitchen also suggests this, adding that the cubes are great for adding to lemonade. (https://natashaskitchen.com/what-to-do-with-lemons/) The Frugal Farm Wife provides a similar step-by-step guide. (https://www.frugalfarmwife.com/article/how-to-freeze-lemon-juice/)
You can also freeze lemon juice in other containers, such as freezer bags, but ice cube trays offer portion control for easier use. Freezing lemon juice as a concentrate mixed with simple syrup is another option. (https://tikkido.com/blog/homemade-lemonade-concentrate-to-freeze) Remember to always label and date your frozen lemon juice.
Note: The freezing point of lemon juice is lower than water, so it may take slightly longer to freeze completely. (https://ask.metafilter.com/241761/Why-wont-my-lemon-juice-ice-cubes-freeze)
