How to operate a still air box (SAB) for home and commercial mushroom cultivation 

That works fine for a small tote, not necessary for this large SAB.

I had it built by a plastics company.

Have you not heard of a still-air-box?

@@StipeCap I’m fully aware of the SAB, but I liked this design

Oh, I see. Thanks for the clarification.

Much appreciated. There seems to be a great deal of confusion concerning the application of both still air and laminar flow. Both produce excellent results on their own, but should never be combined.

Totes are the perfect introduction-level quick fix, but anyone serious about long-term use should consider something like this, it doesn't have to be entirely Plexiglas, but something similar in size, at least.

Everyone trying to make a dollar from Patreon, I have no problem giving it away for free. Willy Mycvo, PGT, and other "big names" of RU-vid cultivation are all a bunch noobs attempting to make a living from other people's intellectual property.

​@@StipeCap That's quite the accusation. Care to give examples of how each of them are stealing IP? What IP are they stealing, from whom? It seems surprising that such prolific RU-vidrs are supposedly stealing IP and not getting sued for it.

We're talking about techniques authored by semi-anonymous individuals to cultivate what was once illegal mushroom species. There are no legal actions that can be taken against individuals who have misrepresented information they've found published openly on the internet. This is a widely known fact in the online mushroom community, it's folks who are new to this community that don't recognize this reality. Unless of course, you believe that all of these folks learned to cultivate in a vacuum and have become so adept independently of others that their cultivation content is pure insight, hard earned experience, and skill. None of them are skilled, none of them have developed their own techniques, and none of them give credit where it's due while they charge unwarranted fees for unsuspecting newcomers to access info they have neither developed nor know how to employ correctly themselves. They're charlatans.

Much abliged.

Yes, within reason.

Much obliged.

Clean your SAB, but there's no requirement for excessive sanitization. If there's dust in your SAB, remove it before use. You can run the SAB dry, or spray the floor with soapy water to trap particles.

They're just dish racks. Check out my other SAB video, the beginning shows me sourcing the rack.

I'm in Canada, so I purchased it from Canadian tire.

If a draft came through the holes, the floor is where the particles settle, so no, the floor must not be disturbed.

The unit was built by an acrylic fabrication company. Professionally built.

Skim through the comments, the dimensions are listed in one of them.

Both have advantages and disadvantages and can have different applications. Working with contaminated wild cultures or spore printing is best done in a still-air environment. Still air is often employed in areas that don't have access to a cheap/reliable power source in developing countries. Laminar flow allows for freedom of movement, workflow, and a greater volume of work when the appropriate infrastructure is available. Having both available is the best-case scenario. Sterile technique is key no matter what you choose.

@StipeCap thanks for this detailed answer. I'm just a beginner but I'm Also highly motivated. I'll see how I can manage to make myself a proper and big enough SAB for now. I'm also trying my Best with sterile technique, exposing grains and spores as little as possible to the air and not putting my hands above this materials. It's more challenging that it seems, isn't it? If I can, I would like to know your opinion about this: should I, provided I Get a big enough SAB, prepare the cakes inside of it or not? Because it seems overkill, but, at the same time, we're really careful while preparing the grains, but not as much with the bulk, and I happened to Get contams at the bulk colonizing stage.

@martindamasseno5164 Still air and laminar flow are for the sterile culturing phase of cultivation. Producing pure culture on agar, the inoculation of media like spawn, liquid culture, grain to grain transfer, etc. Anything past that phase that doesn't involve nutrient-dense substrate or media can be handled in the open air.

@@StipeCap thanks, man, really. Much appreciated!

I had it fabricated, my design. The top, front, back, and bottom are a single piece, 1/4" plexi, with polycarb hole covers, brass screws and grommets. Covers have foam gaskets. I'll have to check but I believe it's almost 400 internal quarts, worthy of commercial use.

@@StipeCap would be interested in replicating it. It is amazing.

It was a prototype intended for production, but it's not cost effective, too expensive.

@@StipeCap that's a damn shame. Its awesome

One of a kind, but it works great. I can run a load of bags without laminar flow. SE Asian farms have more still air boxes than US farms have laminar flow. Folks don't appreciate the efficiency and reliability of still air. Hopefully, it will inspire folks to venture outside the upside-down tote mentality.

I had it fabricated.

I guess you had to; I see nothing like this available online. Very well done explanation video. Thank you. ​@StipeCap

@SamWereb Thanks, and yes it's very custom.

I had it built by a fabricating company.

@@StipeCapcould you please share the concept dimensions and the material used to frame the covers? That black material that seems to adhere to the acrylic

@joaorebochooaw6321 The black stuff is crushed foam gasket to prevent leaks. The hole covers are polycarbonate with sunk threaded brass grommets.

One of the many reasons I had it made by professionals.

Too expensive to sell, unfortunately.

Do you do your flame sterilizing of blades and syringes outside each time and then come back in slowly?

Yes, always sterilize utensils outside of the SAB. The red-hot metal will maintain sterility while you move from exterior to interior.

Soapy water sprayed on the floor of the box can help trap particles.

Some folks spray the floor with soapy water to trap and neutralize particles, isopropyl tends to evaporate and produce fumes. Neither is necessary, but I'd choose soapy water over alcohol. The problem with a vacuum system is it pulls outside particles into the box, and disrupts the still air environment.