Skip navigation

RVA by Stirring Number Analysis

Rapid Visco Analysis (RVA) is a fast and reliable indicator of pre-harvest sprouting in unmalted grains because alpha-amylase is produced in the field during pre-germination and the effects of alpha-amylase on mash viscosity are measurable.

RVA by Stirring Number Analysis
Perten RVA Method 14.02


Germinative energy and germinative capacity tests, and visual evaluation of harvested kernels often fail to detect pre-germination damage. RVA testing is a more sensitive method and is used to identify pre-germination before loss of viability is discovered during storage.