All tools

Parameter Slider Lab

Mold Risk Visualizer

Microgreen trays fail for four reasons far more often than any other: humidity too high, temperature too hot, airflow too weak, seeds too dense. Play with the sliders below and watch the live risk gauge. This is a pedagogical composite — not a predictive model. The bands and advice are tuned to match the cited sources below.

How this gauge works

Each input contributes to a 0–100 index. Humidity above 50% and seed density above 20g/tray are the two biggest risk drivers; temperatures well outside 18–26°C add stress that compounds with humidity. Airflow is the one lever that actively reduces risk. The band boundaries are calibrated against commercial grower reports — this is a teaching tool, not a forecasting model.