flapping_bird said:

FWIW, I get by with a nailhole in the original metal lid, covrered with two layers of 1” squares of micropore tape…I scrape it off and replace the tape every several runs through the PC, but its worked very well for me so far.

I’m working up to trying unmodified lids, but not there yet.

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Nokumana said:

Is the main reason that people don't use full-size widemouth filters underneath the lid with just a 3/8 inch hole drilled in the lid because of cost? It's just cheaper to cut out a bunch of quarter-sized discs that can be added to multiple jars?

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tryptkaloids said:

I used micropore covered tyvek lids for a long time and still would if i didnt have a surplus of sfds

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Well, I mean...if that surplus is bugging you too much, you can always send 'em to me

tryptkaloids said:

Nokumana said:

Is the main reason that people don't use full-size widemouth filters underneath the lid with just a 3/8 inch hole drilled in the lid because of cost? It's just cheaper to cut out a bunch of quarter-sized discs that can be added to multiple jars?

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Pretty much yea.

There are hug quality differences in sfds of all prices. You've gotta kinda just find a good one.

Fuck fungi perfecti.

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flapping_bird said:

an inexpensive hack would be to use a piece cut from facemasks, like the blue surgical masks the we have to put on when we go to a clinic or whatnot…just put that down over the hole and cement into place with silicone and let cure for 24h. If you can find used n95 masks, so much the better.

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funkmastakush said:

I use these filter discs also from Amazon: https://www.amazon.com/dp/B08T1D3GY2?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_4&th=1. Haven't had any issues with them yet, I think I've reused them before, or you can discard them. I've also done polyfill and DIY tyvek filters in my lids before. I'm lazy and like to just grab a new disc when needed. They're only $8.

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Nokumana said:

funkmastakush said:

I use these filter discs also from Amazon: https://www.amazon.com/dp/B08T1D3GY2?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_4&th=1. Haven't had any issues with them yet, I think I've reused them before, or you can discard them. I've also done polyfill and DIY tyvek filters in my lids before. I'm lazy and like to just grab a new disc when needed. They're only $8.

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Do you silicone them as well, or just rely on the adhesive they come with?

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Phaethon said:

I doubt N95 would be fine enough. The SFDs filter out anything larger than like 0.3 micron, at 99.97% efficiency, which would be pretty hard to breathe through.

OTOH spores tend to be bigger than a micron, so it might sort of work.

I'd just use polyfil (tightly stuffed through the hole) if I were going for an ultra cheap filter. I have a bunch of commercial jar lids (pickle jars, Tasso's sundried tomatoes) modified this way.

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Splittinghairs said:

Pasty’s Easy Lid Tek

https://www.shroomery.org/forums/showflat.php/Number/22767847/fpart/1/vc/1

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Nokumana said:

Phaethon said:

I doubt N95 would be fine enough. The SFDs filter out anything larger than like 0.3 micron, at 99.97% efficiency, which would be pretty hard to breathe through.

OTOH spores tend to be bigger than a micron, so it might sort of work.

I'd just use polyfil (tightly stuffed through the hole) if I were going for an ultra cheap filter. I have a bunch of commercial jar lids (pickle jars, Tasso's sundried tomatoes) modified this way.

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Forgive me, father I have sinned... I did a quick AI search using perplexity and asked it if N95 was equivalent to a 0.3 µm filter and the answer came back yes. I'm not sure I would trust it, but to me it's worth digging a little deeper to find out.

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