Should I start training my (what will be 9 month old) to get used to having milk in a beaker? I'm returning to work soon and at the moment he is exclusively bf but does readily take water in a beaker at mealtimes. I'll be needing to introduce formula for when I'm at work (long hours), should I introduce a bottle at this stage or could he take it in a beaker? Would he get enough from a beaker (i.e. sipping rather than glugging it down)?