Ice in Drink Bottle

Directions

1. 1
   Carefully place water in the bottom of a 600mL/1 pint/ 20 oz plastic bottle.
2. 2
   It is important a this stage to ensure the water is not placed in the top of the bottle except insofar as to pass through it into the bottom.
3. 3
   Place the uncapped bottle upright or on a slight angle in the FREEZER part of your 'fridge.
4. 4
   Ensure that the angle of the bottle to the horizontal is at least 70 degrees or else the water may attempt to remain at the top of the bottle.
5. 5
   This is never a good thing.
6. 6
   Leave overnight (or longer if your ridgy-didge is pretty weak).
7. 7
   When the water no longer attempts to reach the top of the bottle, no matter how much you move it (the bottle, not the water - otherwise it is clearly not ready), it is ready.
8. 8
   Carefully place more water in the bottle, allowing it to reach the top this time.
9. 9
   Close cap on bottle and wrap in your daggiest tea towel.
10. 10
    Tip: You can top up the runny water when it runs out but only if there is still some non-runny water in the bottle.