Great question! If you have given your plant all the nutrients and climate specifications it needed, and made sure it was completely dry before curing. The sweetness that overcomes the hay or grassy taste should start to show up after a few days being sealed in mason jars. Another tip is to avoid fertilizer right before harvest. In hydroponic growing, you should give your plants 3 days of fresh water, without nutrients. Hope this helps! I could do an entire post about it, if that would be helpful...