How long to double boil?

I am following the famous Cannabis Capsules â?? A step-by-step guide. on these forums, I just made the capsules and consumed two of them...currently waiting on them to take effect. But I think I fucked up two things, first of all I used 13 tablespoons of the coconut oil for 3 grams of bud. Secondly, there were no clear instructions for how long to double boil the bud, only instructions for the "slow cook" crock pot method. So I double boiled for 45 minutes.

What should I have done? What would be the correct ratio, and how long should I have double boiled it for? Once you guys give me the correct answer I will whip up another batch.

Even If this concoction still gets me high, I would still like to know the precise way of doing this.