Here is the end product - a bottle of soya milk made from about 85g dried soya beans, using the Tribest "Soyabella" milk maker (available from Amazon for £129.95 at the time of writing).
Now, clearly this is not a cheap piece of kit. However, given that dried soya beans can be purchased cheaply (e.g. £1.39 for 500g organic soya beans here), the cost of a bottle of homemade soya milk is approximately 20-25p (if not less). The "Soya Bella" can also be used to make nut milks, rice milk, and oat milk. I use mine to make 3-4 bottles of different milks per week; at that rate, it will pay for itself in under a year. And, I also prefer the 'cleaner' taste of homemade milks - no additives, sweeteners, chemicals, and so on.
So, here is how you use the Soyabella to make soya milk!
1. Measure out a small cup of dried soya beans and soak for at least 4 hours.
2. Screw on the blending attachment, fill the kettle with cold water to the internal water line, attach together and press the "milk" button:
3. When it beeps to indicate that it's finished (about 15-20 minutes later), pour out into jugs to cool (I tend to pour through a sieve as there can be a small amount of foam on top):
4. When cool, pour into a bottle and store in the fridge. If you wish, you can sweeten (e.g. with stevia, to be healthy!) and/or add flavourings such as vanilla extract.
All in all, I definitely think the Soyabella is worth the money. As well as soya milk, making nut milks with whatever nuts you have to hand is quite a fun and creative process (and the leftover nut pulp can be used in baking or cooking). As mentioned above, there is something nice and 'clean' about homemade milks - and since they are so much cheaper than shop-bought milks, the Soyabella will pay for itself! My view is it's definitely worth the investment.