is a silicone insert that fits any brand or size of wide mouth mason jar to create a DIY Humidor. Keep cannabis, edibles, tobacco & cigars fresh!
careful attention to the humidity level is important as it should not exceed 65%.
check the sponge periodically and re-moisten to your desired humidity level: you will determine what level you require dependent on size of mason jar used, how moist you want to keep your contents and how often you open your mason jar.
adjust the humidity level by adding MORE or LESS water to the sponge.