i think if you do hash oil its possible
, weed oil same thing .
just couple of drops after the boil and mix mix mix and pour on a cup have your coffee
increase the drops if you need more.
i did milk+tea with THC back at Australia , we just add 4 bags of lipton in a stove or dilma instead of lipton ,... and add hot water ... then start your stove to heat the pan which has the dilma/lipton ( 4 pieces )... after that add 4 spoons of sugar ... then wait 10 minutes until it becomes black and boiling and smelling redtea... then add light or concentrated evaporated milk like carnation light .hxxp://www.nestle.com.au/Products/MSI/Carnation/Default.htm ... then let it boil another 10 minutes ... it becomes browny bage thats when its ready when the sides are brownybage and the middle is abit light. then have that pan ready to pour on a big jug for the tea ... this big jug is used when serving for 8 people little cups of tea.. but believe me i can drink 2 cups .. a cup is 100ml and doesnt matter if their is less then 5 people it will be done by the afternoon .. this jug can store for 6hours heat .. do it in the morning and it must be emptied by noon.
Now when you pour the tea/milk combination to the JUG ,have a filter cap so you can hold back the tea bags so it wont fall in the jug ... put a Quarter on the filter cap . and pour the tea on top of it
THC will be taken down stairs to the jug
.. but remember dont throw those herbs yet ... put them in the freezer and you can do it 1 more times . a Q for 2 jugs of servings
with a pleasant high .. but you will waste alot of THC however its good if you have alot of herbs with you , we had guest and we wanted to do a quick lace fix for them lol , so we did it in this idea and it worked