Amount of beans Questions › Category: About Beans › Amount of beans 0 Vote Up Vote Down Aaron asked 3 years ago What is your suggesting weight of beans to use in the roaster? 1 Answers 0 Vote Up Vote Down zenroastteam Staff answered 3 years ago You could roast about 100g of beans at one time. But the more it’s heavy to shake and difficult to roast evenly. So to get start with, I recommend about 80g – 90g.