Can You Put Coffee Grounds Down The Drain? Here's What Plumbers Want You To Know

Add Yahoo as a preferred source to see more of our stories on Google. Getty Images You've brewed your cup of joe. Then, when you're cleaning up the kitchen, you pour the coffee grounds down the drain.

Yahoo: Why you should stop putting coffee grounds down the sink (and what to do instead)

Add Yahoo as a preferred source to see more of our stories on Google. If you’ve been (secretly) tossing coffee grounds down the drain — it might be time to think again. While rinsing your coffee ...

Why you should stop putting coffee grounds down the sink (and what to do instead)

AOL: Should You Put Coffee Grounds Down the Sink? What to Know First

A plumbing expert explains why pouring coffee grounds down the drain is a bad idea—and what you should do instead.

Should You Put Coffee Grounds Down the Sink? What to Know First

The use of can to ask or grant permission has been common since the 19th century and is well established, although some feel may is more appropriate in formal contexts. May is relatively rare in negative constructions (mayn't is not common); cannot and can't are usual in such contexts.

Can is usually used in standard spoken English when asking for permission. It is acceptable in most forms of written English, although in very formal writing, such as official instructions, may is often used instead: Persons under 14 unaccompanied by an adult may not enter.