Mould in the jar

If it is really bad, yeah, just the moldy buds, but re-dry the other buds before putting them back into jars, so as to prevent it from happening again.

Showing my age here a bit but time was when we just scraped the mold off and smoked the remainder... I wouldn't advocate that now but that's what we did in the 60's! LOL!

Anything that smells like mold toss. Some buds may look fine but if you crumble them up later on and get a whiff of that mold smell, toss it. This is why I am always telling pple I prefer my buds a bit drier than most. Use this for experience and make sure buds are drier than this time in the future ok. It sucks but we have all done it- and hopefully learnt from it and dont repeat it. Some pple will jar up buds that are only just barely dry enough to jar up with the excuse they will burp it daily or a few times a day ect..and then shit happens and they cant burp it for a few days and they lose half their stash to mold. When u put buds into a jar- make sure and I mean damm sure its dry enough that if u suddenly ended up in lock up for a few days or a few weeks in the hospital- your buds will be just fine til u get back to them and they dont need any looking after in the meantime. Old school rule.

Throw away to be safe. Was too wet when you closed it up.