Zonon 128 Pieces Synthetic Filter Paper Sticker 20 x 3 mm Filter Disc | Mushroom Stickers Bulk, High Airflow , Mushroom Growing Supplies, Applied Under Mason Jar Canning Jar Lids

The prompt asks me how was the ease of cleaning? Okay... So yeah, I wouldn't reuse these. Thats why there are 128 in the pack. You remove them when your done with them. I used them to filter jars for mushroom cultivation. It worked out quite well. Theyre easy to put on and take off they dont leave residue. Pretty simple!

These have worked great for making my mushroom spawn jars! Have only had one issue with one jar where the filter came off a bit but I think it was just old and needed to be replaced because I had used it multiple times before without any issues. Will purchase these again when the time comes.

These filters are very easy to use and have worked well so far. They adhere nicely, allow proper airflow, and I haven’t had any contamination issues since using them. Everything has stayed clean and stable, which is exactly what I was hoping for. I’m very happy with the quality and performance and would definitely purchase again.

I use these patches on my mushroom culture jars.

Great item.

I like the filters

Excellent filters, not a single jar has become contaminated since switching to these. Just don’t touch the filter, you may push contaminants through.

I have used AND REUSED these filters on well over a 1000 different jars of spawn. From WBS, to Corn, to Oats I have had and maintained tremendous success using them. Any contam’s I can only equate to my own doing. Because like I said I’ve used & reused these filters multiple times w/ no issues. If your spawn has somehow been contaminated. I would definitely change it out before the next use. I would recommend using plastic lids since they won’t rust from multiple uses. I also recommend using a 1/4” drill bit for your Gas Exchange (GE) hole. As this seems to be the perfect size and best fit for these filters! I HAVE ONLY EVER NEEDED TO PUT 1-FILTER ON EACH JAR! Ive seen ppl say to use multiple but IMO I do not feel it’s necessary. I place on top on the outside of every jar. That goes for both regular & wide mouth lids.

Great gas exchange and stay stuck on. Have had many successful jars.

I got sick of syringe filters getting loose from rtv silicone on my liquid culture jars. I tried these and i will never go back. These are 100% the way to go for mycology liquid culture and grain jars. They keep contamination out!!!!! They hold up in the pressure cooker. No liquid leaks through them and they stick and stay stuck in place. If your debating between syringe filters or these trust me and others save time and money with these!!! Buy buy buy im a customer now for life. Thanks for an amazing product :) I hope the bigger ones for mono tubes come back in stock so i can order those too. Purchased in Canada 🇨🇦

They are too porous and the adhesive won't last beyond a single use. Use 4 layers of 3M micropore tape instead.