Ask Mr. Wizard

Iodine Starch Testing and Defining Mash Conversion


Andrew Robb — Sydney, Australia asks,

I’ve been brewing for a few years now and have very recently joined up with BYO. In the last few days I’ve reviewed the Double IPA recipe listings, which look really good and I’m gearing up to start my first clone attempt. In the instructions is the phrase “until the enzymatic conversion is complete.” Problem is I’ve never heard that phrase before so could you help by explaining what it means and advising how I can tell when it’s complete.

Welcome to BYO where we are committed to providing current, helpful, and technically sound brewing advice to our readers! It’s always nice seeing great homebrewing questions from all parts of the world
Response by Ashton Lewis.