Carbonation
Dryice is solid carbon dioxide (CO2).  When placed in a liquid, dryice will change (sublimate) from solid to gas.  Majority of the gas will bubble to the surface and createa mist.  However some CO2 will dissolve to create carbonic acid and effectively carbonate the beverage though not enough to cause any fizzing.  The slight carbonation effect is enough to tingle the tongue and give a slight taste as found in popular soda waters like Pierrier.

Carbonated Drinks
Ironically dryice does not mix well with carbonated soft drinks or beer.  The vigorous bubbling action will substantially un-carbonate drinks leaving them “flat”.

Non Diluting
Dryice is cold enough to chill beverages without the use of ice.  Hence dryice will not water-down or dilute drinks.

Safety
Dryice is −78.5 °C (−109.3 °F).  This is extremely cold and can cause frost bite.  Always use tongs to handle dryice and ensure that the dryice placed inside Mistystix capsules are securely closed.

Results Vary
The misty effect varies depending on the temperature of the beverage.  The colder the liquid the slower the dryice will be dissolved.  A hot beverage can produce spectacular results as the dryice is rapidly dissolved.  Typically the mist effect can last 3 to 5 minutes.