While most people opt for lemon juice rather than lime juice for a cream of tartar substitute, lemon and lime juice can be used interchangeably in most recipes.
Lime juice has similar levels of acidity as cream of tartar which is what helps egg whites from deflating after they’ve risen. For this reason, lime juice would be a great substitute when making meringues.
You also won’t have to adjust the amount needed so you can follow the recipe exactly without having to work out conversions.
Another good example of lime juice as a substitute for cream of tartar is when making cake frostings or syrups because lime juice helps prevent crystallization.
Overall, we think lime juice is great to use instead of cream of tartar if you’ve run out or don’t want to use it.it can be used in any recipe and won’t affect the overall texture or taste.