You see that little gap in the top of the tea bag, right by the string? At first I thought it was a manufacturing error, like the glue machine missed a spot. But after getting an whole box of Lipton tea with the identical gap I started to think it wasn't an accidental. Finally I realized the little gap isn't a defect, it's a design improvement. You see a normal teabag can actually trap air inside, and you end up with an air bubble in your teabag instead of water filtering through. That little gap in the top of the Lipton tea bag allows air to escape so more water can pass through the leaves. Pretty clever. This is my first box of Lipton tea in ages, so I have no clue how long their bags have been like this.