This guide explains why mushrooms sometimes produce smaller harvests when grown at home. It covers common causes such as dry conditions, poor airflow, delayed opening, temperature changes and natural variation between kits.

Preparing a clean, balanced growing environment is one of the most important parts of mushroom cultivation. Two key methods used by growers are sterilisation and pasteurisation. While both aim to control unwanted microorganisms, they work in different ways and are used in different situations.