Been outdoor growing for decades, I’ve found that dried buds stored in sealed jars stored in a cool dark place degrade after about 12-18 months. Weed becomes darker, flavor fades, and worst of all, buds becomes harsh and unpleasant to smoke. Perhaps suitable for tinctures or other meds but NOT for quality smoking. To maintain potency, flavor and mildness, freezing is the only way I store weed now. Buds are dried in a warm dark attic. I dry buds to a 90%dry stage leaving a small amount of moisture to prevent buds from excessive crumbling. The buds are then carefully packed in double layer ziplock bags with excess air carefully squeezed out of the bags before sealing . Double bagging is necessary to prevent freezer burn. 2 year old buds stored in this manner still have a wonderful aroma, potency is good and flavor is great. Freezer is kept at 0 degrees Fahrenheit.