I am of the understanding that an Espresso coffee machine requires tevillah.
People seem to be hesistant to tovel it as the machine is very expensive and could be damaged and therefore result in a monetary loss.
Also they do not want an ‘uman’ to break and fix it as one loses the warranty on the machine. What eitzah can you offer?
Please see here for previous answers concerning similar questions.
If a person is nonetheless afraid to immerse the machine, another option is to give the machine as a gift to a non-Jew, and to borrow it from him. This will exempt you from the obligation of tevillah (see Shut Minchas Yitzchak 9:83, based on Yoreh De’ah 120:8, 11).
If even this cannot be done, there are some authorities who are lenient for using the appliance without tevillah. However, as noted in the previous response, this is not the mainstream opinion and should not be relied on excepting extenuating circumstances (see Shut Siach Nachum no. 49).