Decarboxylation: The Most Informative Guide You’ll Ever Read
What is decarboxylation? There are still a few fundamental cannabis facts users don't understand. Here we explain decarbing and why it's...
wayofleaf.com
I'm concerned that even at 90 minutes in the sous vide you're not getting the full benefit of the plant. However the 204 at 90 minutes me be fine for your use as the THC may not be what you need chemically. The article above is one of the best explanations I've found.
Carry on.......