The Scientific Reason Grenadine Sinks In Some Cocktails - Tasting Table
Briefly

Grenadine is a very dense liquid with a specific gravity of 1.18, which allows it to sink to the bottom of cocktails, creating beautiful layered drinks.
The scientific principle of liquid density explains why grenadine sinks despite being the last ingredient added to cocktails, enhancing visual appeal and flavor.
Read at Tasting Table
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