My friend took down his crop of ak-48, blueberry & jack herea last week. They all amelt nice before harvest, but not they smell of fresh cut grass.
What is the reason this happens & how can it be avoided?
You dried them too fast. Every environment is different and not everyone can take and hang their plants for a week before they jar them. I actually jar mine after 3 or 4 days in drying boxes and come off with better results. You have to experiment a little to find a method that works best for you.