Hiya

I have some seeds I'd like to store long term. I've read the guide on here to storing them, and it says it's best to use porous containers and indicating silica gel.

I know glass jars aren't porous, but if I replaced the lid with, for example, a piece of kitchen towl and a rubber band, would this be sufficient, or does the entire container need to be porous?

Cheers!

The container its all in needs to be air tight, the containers holding seeds and silica need to be porous.

This way the dry silica can draw the moisture inside the overall container to a very low level. If the seeds were in airtight containers, the moisture level would stay at what ever the level was when sealed.

Make sense?

It does, thanks!

So I guess the containers inside the large sealed container need to be completely porous, not just the lids, so the silica can draw evenly rather than just through their lids?

Small unglased paper jewellery envelopes work well for seeds if you don't have to many, film canisters with kitchen towel as a lid also works well as do cardboard tubes from bog roll and kitchen towels. As long as any container used has a porous area it will work.

When loading a lot of seeds its takes a few weeks to fully dessicate them, the silica gel needs checking and recharging if need be, once dessicated and kept cool seeds keep for tens of years.

Awesome, thank you dude!