Pour the milk into the jug. For the last third take the top bowl off and pour the remainder of the milk into the jug. (to prevent the bottom water going into the jug).
Notice that the milk has left very little deposit in the bowl.
Fill a clean bucket halfway with very cold water. Place the full jug into this.
The milk will have already lost 10 degrees C by pouring it into the jug. It will take about five minutes for it to cool down to the required temperature.
Take off the foam that has formed from the agitation of pouring. The slotted spoon does this nicely. It remains in the jug for stirring the milk, to ensure that the temperature stays even throughout the jug.
You may have to replace some of the water around the jug, if it is getting too warm.
Now you really have to get your skates on, for you cannot afford to let the temperature of the milk drop below 48 degrees C. We will continue with step 3 of the procedure: Growing the culture.
