How to Thicken Liquid Death to IDDSI Level 1 | Slightly Thick Sparkling Water for Dysphagia

Can you safely thicken carbonated water like Liquid Death?
Absolutely—and SimplyThickJohn is here to show you how.

This video demonstrates the best method for creating a slightly thick (IDDSI Level 1) beverage with sparkling mineral water, using the two-cup carbonation control technique. The goal? Preserve carbonation, prevent foam, and make drinks safer and more enjoyable for people with dysphagia.

Learn the difference between a successful mix and a foamy mess—and why using the right thickener and method matters for both safety and appeal.

We have presented posters on this method at both the American Speech-Language Hearing Association (ASHA) and the Dysphagia Research Society (DRS).

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📌 In this video:

The 2-cup carbonated beverage technique

Why foamy messes happen—and how to avoid them

When to skip the IDDSI flow test

Видео How to Thicken Liquid Death to IDDSI Level 1 | Slightly Thick Sparkling Water for Dysphagia канала SimplyThickJohn