Defining What Level is Extremely Thick: From Clinical to Industrial Standards
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4 min read
According to the International Dysphagia Diet Standardisation Initiative (IDDSI), a global framework, an "extremely thick" liquid is classified as Level 4, which is the consistency of a pudding or mousse and is spoon-eaten, not sipped. Understanding this level requires a look into the science of viscosity and rheology, defining how substances resist flow across different fields, from healthcare to manufacturing.
