All coffee is not created equal. And it's not brewed equally either, which can lead to unexpected health risks, according to nutrition expert Eric Rimm of Harvard T.H. Chan School of Public Health.
Rimm is talking about European pressed coffee, which is gaining popularity among coffee lovers in the U.S.
If you're not familiar with it, pressed coffee is made in -- what else? -- a press, a special glass pitcher. You put the ground coffee in the pitcher, pour in some boiling water, and then press a mesh plunger down to strain the grounds.
The catch is that, unlike other brewing methods, some coffee grounds can slip through and wind up in your cup. The problem with that is that coffee grounds contain oily substances, called diterpenes, that may raise your "bad" LDL cholesterol.
Not too much
Rimm recommends that if you become enamored with pressed coffee you shouldn't drink too much of it, preferably no more than four cups per day. He also recommends checking your cholesterol regularly to make sure your LDL stays under control.
In general, coffee is considered healthful. It has been associated with lower blood pressure, slower weight gain with age, and reduced risk of type 2 diabetes, hearth disease, and neurological problems.
But even so, there are limits, Rimm says. For non-press coffee, he suggests holding your intake to no more than five cups per day.