Food Science: Color-Changing pH Indicator
Anthocyanin Reactivity: Red cabbage and hibiscus contain high concentrations of anthocyanins, natural water-soluble pigments. These molecules act as natural pH indicators.
In neutral water, the infusion appears deep blue/purple.
Adding acid (such as lemon juice) lowers the pH, shifting the molecular structure and turning the liquid into a bright, vibrant pinkish-magenta.
Storage & Usage Protocols
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Refrigeration: Store bottled syrup sealed in the refrigerator for up to 2 weeks.
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Serving Ratio: Dilute 1 part syrup with 3 to 4 parts water, sparkling water, or iced tea depending on desired sweetness and intensity.
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