Just thought I would chime in as this sounds like an area I have a lot of experience in.
I agree with the above post, your drying technique is most likely to blame here and from what you describe I would bet mould is taking its hold on your harvest.
Does the taste get progressively worse...
Can't believe no one else has responded yet, this is amazingly valuable information for anyone with mildue issues.
I have a grow just starting I'm going to test this out through this grow.
Wow! Now this is a great simple idea.
I have just had two garage harvests destroyed by pm. My last harvest seemed ok but was Destroyed by mould during the dry and I think it was attacked by pm in its final weeks of flowering.
In hindsight I did leave the dry room
Window open for more airflow...
Hey guys,
I need some help. The last two harvests have ended in tradegety. I didn't notice anything on my plants at harvest time but while curing the smell and taste of the buds got worse and worse.
I water cured the first harvest a few months ago and when drying the plant I noticed rust...