Hello! I have not noticed big changes in odor mixtures, stir every 3-4 days, but not much. The lids are tight, but not airtight.
There was no plan to use what I have in these pots to test fertilizers. Wildflowers are planted my girlfriend, they just appear there because I wanted to show where I keep mixing, but is a great idea xD
After filtering, the testing process will put it here
again, I thank you for all the help! Saludos y Buenos Humos!!!