Isopropyl alcohol: concentrations and correct use -Friday, November 21, 2025
Isopropyl alcohol is one of the most important tools in the toolbox of every serious mycologist and mushroom grower. This chemical compound, often abbreviated to IPA (for isopropyl alcohol), has become an indispensable ally in the fight against contamination that can compromise entire mushroom crops. Its effectiveness in creating sterile environments and aseptic surfaces makes it essential in every phase of the cultivation process, from substrate preparation to final harvest. In this article, we will explore in depth the properties, optimal concentrations, and practical applications of this valuable disinfectant, providing scientific data, comparative tables, and practical advice based on the experience of professional growers and laboratory research. Choosing the appropriate concentration of isopropyl alcohol is not as trivial as it might seem at first glance. Several studies have shown that microbiological efficacy varies significantly based on the percentage of active ingredient in the solution, with direct implications for production costs and operator safety. Through a detailed analysis of scientific publications and field experiences, we will try to shed light on this crucial aspect, debunking some common myths and providing evidence-based guidelines for the optimal use of this disinfectant in daily mycological practice.
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