crazyhorse73 said: Not all jars are created equal. Mine don't leak, easy to check, fill with water and hold upside down. Can upgrade the seals on most of them as well or use two.
Glad it is working out for you. We all need good storage jars to preserve our medicine.
I do not store water in my jars. Water molecules are much bigger than the 'gas' molecules our medicine produces so water molecules are not likely to leak out. Using similar jars to yours pictured - I can not say that they are the same jar by the same company, so possibly different results- I put the medicine in those jars and put the jars in a sealed box and then double-sealed the box with gaff tape, wrapped the box in a towel, an placed it in a lockable ice chest.
2 days later I checked the jars. All was good until I took the gaff tape off the box and opened it. All I could smell was medicine. As glass does not leak, it had to be the lids! Took out the medicine, fill jar with water, put lid on, held upside down, no water leak! The lids are leak proof!
Due to the immutable Laws of Physics and the fact that those jars have a clamping force in only one spot, it is a physical impossibility for the seal to be clamped with equal pressure all around the lid. For this reason, over time, they will always leak medical gas. As gas leaks out, oxygen leaks in, and then.... Please don't shoot the messenger!
I tried a lot of experiments after my first harvest to see what works best to keep my medicine airtight. I found that most products are designed to separate you from your money. I talked to my grandparents who had a huge garden, and preserved their harvest, said it would stay fresh for near 10 years, hmmmmm..........
I hope those jars continue to work well for you!
Longball