The filter you will choose and the grind will have an impact on the crema, please make sure to read “What is the difference between the pressurized and non-pressurized filter?” and “Which grind is the more suitable?”
When you tamper the grind, make sure there are not any bubbles. If you use the tamper from our coffee maker, you would have to put more strength on it (up to 15kg) since it is made out of plastic. You could also purchase an iron tamper on our website so you would need less strength.