I recently purchased the magical butter machine to decarb flower to make oil. I’ve only used it a couple of times and it has the correct name. It is magic.
for ratio, it depends on the THC content of the flower.
I have one of these as well. Works pretty great. I do apx 14g to 1.5lb or 1.25lb of butter depending. I find a little bit more butter helps with any burnt flavor.
if i remember correctly ,the magic butter machine has a minimum amount of oil/butter that needs to be used per run though correct ? i thought i remember reading like 2 cups. looks like the ardent you can decarb & infuse any amount you like so if you only wanted to do 7-10 grams at a time & use 1/4 to a 1/2 cup of oil you can make it pretty strong