Step one

Add vinegar (20 g/ml) to distilled water (300 g/ml) and glycerol (7 g/ml), then stir until boiling.

Step two

Add starch to a small beaker/ jar (10g) and stirred into cold water (150g/ml). The cold starch solution is added to the mixture once brought to a boil and stirred once the solution has dissolved.

Step three

Add methylcellulose (15g) to the mixture stepwise (in small portions) whilst stirring until dissolved into the solution.

Step four

Reduce heat of the solution to a simmer (65-75 degrees) and stir until homogeneous.  You may still find small lumps over time depending on the type of starch - Remove these with a spatula. 

Step five

Pour into moulds, once all the solids have dissolved. Then leave to set in the air - once moderately set transfer to the dehydrator at 35ºC for 18-21 hrs.