This week, contributor Andy Carter joins Marshall to discuss the use of sulfites at packaging to reduce the risk of cold-side oxidation, focusing especially on the differences between sodium and potassium metabisulfite. The Brülosophy Podcast is brought to you by Imperial Yeast who provide brewers with the most viable and fresh yeast on the market. Learn more about what Imperial Yeast has to offer at ImperialYeast.com today. | Relevant Article | SMB vs. PMB At Kegging xBmt