A restaurant owner squeezed over increasing input costs in his business has flagged the possibility of a cup of coffee costing $10 as the new norm. Chef Luke Johnston, who has owned and operated a North restaurant for more than 10 years, said passing on the costs of rising electricity prices to customers could cause the humble cup of coffee to reach the unthinkable price.It comes as electricity prices are expected to skyrocket by 23.9 per cent across south-east Queensland by the beginning of the new financial year, penipu the Australian Energy Regulator said.Mr Johnston said he is worried about the state of hospitality venues where he runs his business in regional Queensland.’People are talking that it’s not going to be uncommon to hear of a $10 cup of coffee,’ he told