https://magicmushroomsubstrate.co.uk/tags/bulk-substrate/Recent content in Bulk Substrate on Mushroom Substrate ScienceHugoen-gbSat, 14 Mar 2026 00:00:00 +0000https://magicmushroomsubstrate.co.uk/substrates/bulk/Sat, 14 Mar 2026 00:00:00 +0000https://magicmushroomsubstrate.co.uk/substrates/bulk/<p>Right, look. Bulk substrates are the actual engine room. Grain spawn? That&rsquo;s just the inoculation vehicle, basically a taxi service. The bulk stuff has to do the heavy lifting for primordia and fruiting. If you mess this up, yield tanks. Contam wins. Efficiency goes out the window.</p> <p>We&rsquo;re covering coco coir, cereal straw, hardwood sawdust, composted manure, and supplemented formulations. Sorted.</p> <h2 id="field-capacity-the-fundamental-measurement">Field Capacity: The Fundamental Measurement</h2> <p>Single most important physical parameter. Maximum water a substrate can retain against gravity after free drainage. You gotta know this. Otherwise you&rsquo;re just guessing.</p>