title_body: opening a new unopened Starbuck's coffee bag
upvoted_answer: I always prefer to cut this type of bag open. There probably isn't TOO much chance of plastic ending up in your coffee grounds, but I feel better with a clean cut rather than the ragged ends.  Starbucks has top quality machinery, so their bags are always sealed very thoroughly, thus hard to open. With some other companies the heat seal on the bags is not as perfect, so the bags are easy to open.