No RFID on any machine, so refills are truly unlimited. That said, they’re supposed to be one per person, not one per party, so please don’t cheat the system because if they do decide they have to install RFID chips it will mean huge gaps between refills even during meals.
They are neither advertised as length of stay nor for forever. The signs simply say they are limited to Aulani mugs.
Ulu cafe has 2 different machines with slightly different offerings, including different flavors of Fuse tea (Raspberry and Unsweetened). Freestyle machines are indeed gone. Opens at 6:30 AM.
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Ulu also has 2 kinds of ice. The pictured machines dispense “chewy ice” while the water machines dispense a flat ice cube. Both have very high surface area ratios (aka will melt fast).