Honestly, you really don’t need to buy anything special for keto. Grass fed butter or normal raw coconut oil works just as well. Sure, it’s not as completely absorbed and such, but so what? The long-term end results are the same.
My only advice…if your mug isn’t big enough..Don’t pour all the coffee in at once!!! Makes a HUGE mess. LOL… just enough hot coffee to melt the butter and then all the other ingredients go in and blend away!