Yes, you are permitted to bring your own coffee into Disney World in 2026, provided you follow the standard security guidelines for outside beverages. Outside coffee is a popular way to avoid the long morning lines at the park's Starbucks locations (like Main Street Bakery). The main restrictions are that the container cannot be glass and must not have a "pungent odor." You can bring a standard travel mug, a disposable cup from a resort, or even a thermos. However, you cannot bring in a reheating device or "self-cooking" hotpots to brew it on-site. When passing through security, simply inform the Cast Member that you have food/drink for self-consumption. For 2026 visitors, bringing a sturdy, insulated tumbler is a "pro-tip" as it keeps your coffee hot during the rope-drop rush and can be refilled with ice water later in the day to beat the heat.