Effervescent Drink
Ingredients
Directions
Make the solutions
Pulverize the tartaric acid very finely.
Dissolve the tartaric acid in a tumbler with ½ cup of cold water.
In another tumbler, dissolve the contents of the blue paper in ½ cup of cold water.
Combine and drink
Pour the first mixture into the second and drink quickly while it is foaming.
Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.
Explore the science
What each ingredient does
- Tartaric acid
- Supplies the sour taste and reacts with the blue-paper contents to release fizzing carbon dioxide.
The step that matters
Drink quickly while foaming. The fizz comes from carbon dioxide gas that escapes from the liquid within minutes. Waiting lets the foam collapse and the drink lose its sparkle.
“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.
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