Color-Changing Drug Detecting Coasters

Color-Changing Test Strips

Equipped with easy-to-read color-changing test strips that react to common drugs such as GHB, ketamine, and various benzodiazepines, even at low levels, providing a reliable method for detecting potential drink tampering.

Sensitive and Specific Reactions

Utilizes sensitive and specific reactions that avoid false positives from other substances commonly found in drinks, ensuring accurate results and minimizing the risk of false alarms or unnecessary concern.

Disposable Design

Designed for single-use, the disposable coaster offers greater convenience and accuracy, allowing users to easily test their drinks without the need for complex equipment or specialized training.

Versatile Distribution

Easy to customize for distribution by a variety of venues and brands including bars, clubs, and universities, or for personal use, offering flexibility and accessibility.

Multiple Strips for Multi-Drink Testing

Includes multiple test strips, allowing the user to test multiple drinks and test for different compounds simultaneously, providing comprehensive protection against drink tampering and ensuring peace of mind.


Drink Sentry is a user-friendly drink-testing coaster designed to provide an additional layer of security for anyone drinking in public. Drink tampering is always a risk in busy locations, potentially leading to catastrophic consequences if a tainted drink is consumed. Drink Sentry disposable coasters feature built-in test strips that react to a range of chemical compounds, making it simple to see if common drugs such as GHB, ketamine, and various benzodiazepines are present in the drink. Simply place a few drops of the drink onto one of the test strips along the edge of the Drink Sentry coaster, and the color will change if one of the specified substances is detected. While nothing can replace general vigilance and awareness, Drink Sentry provides increased peace of mind for a variety of social environments.



Drink Sentry is in development and we are currently looking for qualified licensees to help bring this innovative concept to the market. If you are interested in learning more, please reach out to us through the information provided.