dude, just fucking search for it.
yes, you have to decarb it at 250 in the oven for about 30-45 mins
Option #1: Decarb Your Kief
This is a question with a fairly detailed answer, and one we go into at length in our article “The 3 Best Ways to Decarb Your Weed“, but the short version is: Place your kief into a flat layer on a parchment paper-lined baking tray and set it into the oven at 230°F for 30 minutes to 1 hour. You’ll need to keep a close eye on it as it cooks to make sure it doesn’t burn; if the color starts looking too brown, it’s time to pull it out, no matter how long it’s been in the oven. Stirring it to mix on occasion will also help prevent burning.
After your kief has been decarbed, it is now activated and ready to be used in any dish you’d like, including making cannabis-infused coffee. To derive the maximum benefit, we recommend using a splash of milk or creamer in your coffee, topping off with fresh coffee if needed to make sure it stays hot. In addition, the fat molecules present in the dairy will give the cannabinoids leeching away from the kief/cannabis something to bind to, making the THC more well blended with the drink; otherwise, we recommend making sure you sip out every last drop & piece of kief left in the cup, to make sure you’re getting the full benefit of the cannabis within.
https://highthere.com/cannabis/how-to-make-kief/coffee/
took me to 2 fucking seconds.