Here in the USA, due to occupational health and safety concerns, almost all the cafe establishments operate with the restriction of NO BOILING WATER!. As a consequence they are unable to brew a decent pot of black tea!. Now most of these places have espresso machines with milk steaming attachments. So here's my question. What is the temperature of the fluid (air/steam) which comes out of the steaming heads? Is it above the boiling point of water? and so, IF I ASKED NICELY, could be used by the barrista to heat the water in the teapot to boiling, and so fit to brew a decent pot of tea. Asking them to nuke a pot doesn't work because:
- the pots usually have at least some metal fittings
- water in a mug often super heats, and explodes when the cup is first disturbed.