Most Moka pots aren’t designed to make crema. This is because you need at least six bars of pressure to produce crema. So, in most cases, only espresso makers can achieve this. Keep in mind that espresso makers achieve a nine-bar pressure level. In contrast, most Moka pots can only reach one or two bars. However, it is possible to find a Moka pot with a special valve known as a cremator which can produce more pressure to create crema.