Despite assurances by Yale Dining that the free stainless steel mugs issued this week had two caps to prevent leaking, some stained and sorry students have found that the mugs can spill after all.

Clinical trials conducted by the News determined that liquid may leak through the ventilation hole in the inner cap when the mugs are completely filled. Cross Campus recommends not filling the mugs more than three-quarters of the way.

YALE DAILY NEWS