A Murphy & Son Dried Yeast – Sour Trapp
Murphy & Son
Price not listed
This sour yeast offers a natural method for souring beer without the use of bacteria, addressing concerns related to bacterial contamination and eliminating the lengthy 1-2 day kettle souring process, as well as the risk of oxidation. This innovative yeast offers a natural method for souring beer, eliminating the need for bacteria and can bypass the lengthy 1-2 day kettle souring process, mitigating the risks of oxidation, all while achieving that desirable tartness. Specifically selected for its ability to produce lactic acid, this strain delivers a smooth, refreshing acidity with subtle to m
Murphy & Son's own words, read from their page.
Buy from MURPHY & SON LIMITEDMURPHY & SON LIMITED is a UK retailer, not the maker. Price seen 2026-09-26. Not an affiliate link, we earn nothing from it.






