I wanted to preserve my juices longer. I am using a mango juice powder that includes the ingredients Sugar, Mango Juice, Malic Acid, Natural Flavor. I am dissolving about the powder into 8 oz of purified water. How much citric acid should I use to make it last longer and about how long will it last me? I know this won't be exact but I am just trying to get an idea of how it will work. Thank you so much in advance and please let me know if you have any questions.
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