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The Underground Guide

Practical education for culture work, grain spawn, cultivation and building a capable home mycology lab.

All Guides 🌟 Beginner Foundations 🔬 Lab Tech & Equipment 🌾 Substrate Recipes 🌡️ Environment Control ⚠️ Contamination Diagnostics

🍄 Beginner Foundations

UNDERSTANDING LIQUID CULTURE

Sep 7, 2026

Learn what liquid culture is, why growers use it, how it fits between agar and grain, and what...

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🍄 Beginner Foundations

GLASS VS DISPOSABLE PETRI DISHES

Sep 7, 2026

Reusable glass or sterile disposable plastic? Compare clarity, convenience, sterilisation, durability and long-term value before choosing the right...

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🍄 Beginner Foundations

Getting Started with Agar

Sep 7, 2026

A practical introduction to agar culture work: what agar does, what you need, how to pour and inoculate...

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🍄 Beginner Foundations

Choosing Grain for Grain Spawn

Sep 7, 2026

Millet, rye, wheat, oats or popcorn: understand the practical differences in kernel size, inoculation points, hydration and handling...

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