Roman Catholics do still observe a Eucharistic fast you know. We must abstain from any food or drink no matter how deliciously dark-roasted for at least one hour before reception of Holy Eucharist. See 919.
This is much reduced from the fasts required of previous generations of Catholics and there are some who think it should be lengthened beyond only one hour again.
In any case, it is so nice to get a Starbucks Chai Latte...AFTER... mass.