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When spawning fully colonized WBS jars to pasteurized straw inside a bin I noticed (AFTER crumbling one of the jars into the straw) a distinct sour smell. It's been a few days now and the mycelium on top seems to be colonizing fine, but has a strange odor to it...not very strong but not very right either.
My question is, if there is indeed bacteria present, is there any chance the mycelium could overtake it? I'm guessing bacillus can thrive just as well on damp straw as it would in a grain jar, but this is my first contamination threat so I really have no clue.
Have you used straw before? Moist straw has a certain smell to it, if you've used straw before and this is a new smell, I'd pitch it. If you're not sure, it might be worth hanging onto, possibly checking to see if it's colonizing throughout, and seeing if the smell gets worse. The straw won't be sterile in any case, but shouldn't smell that bad.
I hadn't used straw up until recently. The bin in question is the second attempt at it. The first was started about a week before and is about completely colonized. The second bin (which was spawned only a couple days ago) smells different, but only slightly.
I think I'll just hang on to it for a while and see what happens, as long as there isn't a health risk. Can bacillus be hazardous to one's health from simply being in the vicinity?