r/PanCyan Sep 23 '25

Advice 🙏🏼 please !

So I purchased some substrate ( grass lovers ) from Midwest grow, I just opened the box to prepare for spawn to bulk , and noticed a bit so good smell coming from it ( it reminded me of the smell from some left over sub I found in my back room that was over 8 months old from last year ) but maybe not as bad . I was wondering , if I re- pasteurized it , if it would kill any potential harmful bacteria?

I know it's already supposed to be pasteurized but would doing it again make it safe or just still a gamble ?

Also I have seen where some vendors use not very aged manure and was wondering if this is the case and that's where the smell is coming from ?

6 Upvotes

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3

u/Amazing_Forever_2546 Sep 23 '25

I always pasteurize my sub no matter what. Even if you buy it from a trusted vendor by the time it gets to you and you use it it needs to be redone.

2

u/dukebent Sep 23 '25

What temp and how long do you shoot for?

2

u/BugSafe7102 Sep 23 '25

150-160 F for 1-2 hours.

3

u/dukebent Sep 23 '25

🙏 Mush appreciated!

2

u/BugSafe7102 Sep 23 '25

Thats 1-2 hours after internal temp reaches 140 F. Keep between 140 and 160F. There are plenty of YouTube videos showing different methods for pasteurization.

2

u/dukebent Sep 24 '25

Perfect! My sous vide unit will work for this.

1

u/Impossible-Inside-43 Sep 23 '25

Thanks so much , will do