Preparación casera de grano estéril para cultivo de hongos #stem #micología #ciencia

In this video, you'll learn how to prepare sterile grain at home for mushroom cultivation, using popcorn and sorghum as examples. I'll show you the entire process and the logic behind each step: from prolonged soaking to weaken bacteria and spores, to boiling, which acts as initial pasteurization, to drying until the grains are soft and moist inside but dry outside, and finally, sterilization in a pressure cooker. 👉 What you'll see in this tutorial: Why 24–48 hour soaking is key to reducing contaminants. How to boil and dry the grain without losing its structure. Practical differences between popcorn (more tolerant) and sorghum (more delicate). Homemade sterilization techniques with a pressure cooker, even for small batches. Tips for recognizing the ideal grain texture and detecting if it's overcooked or undercooked. This method is ideal for beginners in home mushroom cultivation and offers a reliable way to transform conventional grains into "sterile spawn," ready to become the foundation of your own mushroom culture. Subscribe and turn on notifications: in the next video, I'll show you how to inoculate the prepared jars. #mushrooms