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Folders:  bulk_pasteurizer  casings  composting  contaminates  fruiting_chambers  humidifiers  ipomoea_tricolor  lab_equipment  misc  other_species  spawning  spore_printing  substrates 
pasteurizer_temp.jpg
pasteurizer_temp.jpg

At full capacity the unit fights to keep all of the material contained within within the 140-160(F) range, I very rarely run it this hard...

substrates_03.jpg
substrates_03.jpg

The unit can accommodate up to 12 bags each holding 8 quarts each or approximately 96 quarts total. Better still, it can handle logs for wood-lovers.

substrates_02.jpg
substrates_02.jpg

The bags used for my substrate are "gusseted poly bags" and can hold approximately 6-8quarts each. Make sure the bags are NOT air-tight when tied!

pasteurizer_07.jpg
pasteurizer_07.jpg

Original (standard) 4" PVC legs designed to hole the racks. The cutouts held the CPVC plumbing but the heat was still too much and they melted...

pasteurizer_06.jpg
pasteurizer_06.jpg

You *must* use CPVC when making a steam pasteurizer to handle the extremely high heat of the steam. Standard (white) PVC _WILL MELT_!!!

pasteurizer_05.jpg
pasteurizer_05.jpg

The unit should run a little hotter than our required temperatures of 140-160(F) to ensure the center of the substrate will be heated thoroughly...

pasteurizer_04.jpg
pasteurizer_04.jpg

Notice how the holes are cut in an alternating pattern to allow steam to flow freely in all directions, not simply directly at our bags.

pasteurizer_03.jpg
pasteurizer_03.jpg

4" Standard PVC pipe is cut off into 6" high 'feet' to suspend the (cut-to-size) shelving racks over the plumbed in steam.

pasteurizer_02.jpg
pasteurizer_02.jpg

Aside from the detail of the plumbing you can also notice that I used some "Great Stuff" insulating expanding foam to insulate leaky joints in the b...

pasteurizer_01.jpg
pasteurizer_01.jpg

The steam pasteurizer shown requires two "Wagner 705 Power Steamers" to power it sufficiently because of it's large internal capacity.

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