by Max Bredow

Watermelon Ice Cubes

Updated July 7, 2026

5.0 from 1 rating

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DrinksPrep 5 minWait 8.0 hMakes 1 tray (16 cubes)

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Watermelon Ice Cubes

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Watermelon electrolyte ice cubes with a Saltivate stick packet

Regular ice waters down whatever you pour it over. These electrolyte ice cubes do the opposite: Saltivate Watermelon frozen into a standard tray, ready to flavor and salt a bottle of plain water as they melt. Drop a handful in before a hot commute, a long walk, or an afternoon at the park, and by the time you are thirsty the water has picked up a light watermelon flavor and a hint of salt instead of tasting thinner with every sip.

Ingredients

Makes one standard 16-cube tray, which holds 1 full serving of electrolytes total. Four cubes in a water bottle add about a quarter serving.

Instructions

  1. Stir 1 scoop of Saltivate Watermelon into 2 cups (475 ml) of cold water until fully dissolved.
  2. If using, drop a small watermelon chunk or mint leaf into each well of the tray.
  3. Pour the mixture into the tray, filling each well almost to the top.
  4. Freeze for at least 4 hours, or overnight for fully solid cubes.
  5. Pop out 4 to 6 cubes per water bottle of plain water and sip as they melt.

Serving suggestions and variations

  • Double the batch with 2 scoops in 4 cups (950 ml) of water to fill two trays at once.
  • Once frozen, transfer the cubes to a zip-top freezer bag; they keep for up to 2 months and free up the tray.
  • Any flavor works here. Raw Unflavored makes plain cubes you can drop into iced tea or sparkling water, adding a clean salty edge that sharpens the drink's flavor as they melt.

Per serving: about 25 kcal (estimate).

Ratings and reviews

5.0 from 1 rating

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Max ·

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