For safe boiling water canning, can I substitute acidity requirement using lime juice instead of lemon juice?
Yes, for the most part, limes and lemons can be used interchangeably in recipes. However, it's important to note that lime juice is more acidic than lemon juice, so you may need to use a little less of it than what your recipe calls for. The general rule is 3/4 cup of lime juice substitutes for 1 cup of lemon juice.