Will u take some pics of how they install it in the lid? Do they use a rubber piece or some sort of sealant?
They look to be glued into place with silicone sealant, into a round hole in the lid.....That's about it.
My first auto will be done in nxt couple weeks. Won’t amount to much but frosty....I will get on making one soon. I bet it’d be a nice lil extra $ maker selling them online
Around two years without losing too much potency, but starts degrading faster after that....But it doesn't 'spoil' as long as it was dried enough first...It just gets weaker...