Tag: potassium metabisulfite

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All About Potassium Metabisulfite – WMA006

Potassium metabisulfite is a complex additive. In this episode of the podcast I break down how it functions, what the difference is between potassium metabisulfite and sodium metabisulfite, as well as the difference between free and total sulfites (which come from potassium metabisulfite).

It’s an important topic for many wine makers and consumers alike. One that deserves our attention to fully understand how best to work with it so that we can create the best possible wines.

Adding to the complexity of it all are the many names by which it goes. You’ll see wine makers referring to potassium metabisulfite as PM, k-meta (the k stands for potassium on the periodic table of elements), and campden tablets. Continue reading “All About Potassium Metabisulfite – WMA006”

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Adding Potassium Metabisulfite to Wine

Potassium metabisulfite is a necessary preservative in wine making. It provides sulfur dioxide which helps prevent microbial spoilage and fight off oxygenation. However, figuring out how much to add can be complicated.

By the end of this article you’ll understand how this stuff works, how to calculate what you need to add, and what equipment you need to do it. Let’s get to it. Continue reading “Adding Potassium Metabisulfite to Wine”

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Using Potassium Metabisulfite to Make Wine

Potassium metabisulfite comes with just about every wine kit and is used as an additive even in wineries.

This article explores what potassium metabisulfite is and how it works. To learn how to figure out how much to add to your wine check out Adding Potassium Metabisulfite to Wine (includes a calculator).

But what does it do? What is it for? Is it safe? Let’s find out. Continue reading “Using Potassium Metabisulfite to Make Wine”