you could put really nice filters in your vents, vacuum completely, turn off the air after circulation and spray your house with bleach water and just stain your walls and get contams. BUT its a good precaution, the mold spores are carried through the air. you know like on tv how they have the mold spore counts and stuff? well thats kind of what that is. make sure there is no air blowing around when your working with your stuff, innoculation to be exact. or if your doing transfers i think you NEED a glovebox of some sort, cause the tranfer of open mycelium, its like opening up your flesh to transport muscles or organs, you dont want to do it in the open in your kitchen or you might end up with some nasty shite in your body and croak from infection! i think its bleach water to dunk, and a light peroxide spray for humidification. i know it can survive the bleach water, i have tried, but i know if you spray bleach water on the cakes it just hampers the growth.
I have had several several encounters with cobweb, until one fine day. I had pre sterlized all my substrate material, sticking the brown rice flour and vermiculite for the substrate and for the dry vermiculite layer in the oven for 20 minutes at about 375. after this i mixed in a clean bowl with fresh clean water. (from the tap) but i Pressure cooked them. those babies came out looking like gold from the heavens! and after so many half assed attempt to try and colonize jars only ending up with cobweb, trichoderma, other nasty shite. i had only lost one jar out of 8 to contaminants!
that contaminant could have been from when i had been fooling around with the jars after innoculation and took the tape off and replaced with foil and blah blah blah. but you dont want to leave the tape on and make sure you have foil that is semi wrapped around the jars... i think that really helped. with the increase of incubation time you have an increase in the chance of contaminants. after 100 % colonization its not too likely to get cobweb unless you are just careless.
when i made the terranium i as well sterlized the perlite in the oven near 400 for 20 minutes. then i ran the perlite through water in a strainer. I made sure the terranium had been thoroughly clean with some wipes and bleach water solution. then added perlite and sprayed again with bleach water. covered. let sit, inserted cakes. sprayed and let it go. i only used bleach water once and then peroxide after that and everything was fine. ocassionaly spray the air outside where my terranium was kept as to reduce in airborn contaminants. but as far as that goes you have judge by where the locale of your terranium is kept and adjust accordingly.
i doubt you will be able to suck all the contaminants out, you will be drawing the air out somehow. unless you live in a flowhood i doubt you will get them out . dishes are stationary and shouldnt make too much of a mess unless there is mold in them and you start waving them around. or unless you start getting all touchy feely everywhere and compromise your cleaninless through physically tranporting contaminants. just keep your hands on your work and remember to keep up with your moves. ive done a few dumbass mistakes but nothing bad that has compromised the integrity of our friends.
i hope that helps.
it might not be a bad idea though to let your house air out, i.e. leave the windows open. but then i might let the air circulate in the house. but i think its most important to spray or make sure you have a safe place to innoculate... like an oven.
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