Does this make only "hot" soy milk? I'm interested in this product, but am wondering if this makes only "hot" soy milk. Can this make also cold soy milk? Because I always want cold milk or soy milk. I haven't used a soy milk maker before, so I'm not even sure if making cold soy milk is possible. If it's possible and this machine can make only hot soy milk, are there any other products that can make cold soy milk? I'll appreciate any related responses. Thanks.