Well, a colloid is a solid that is trapped in a liquid. The best way to describe it would be like Jell-O. When the composting material breaks down and decomposes, it becomes humus. Most of the surface area of this humus is negatively charged and will attract the positively charged nutrients of your compost pile. This is what will make up your colloidal humus compost. Most compost contains humus but in trace amounts. The techniques used at ColloidalHumusCompost.info will allow you to make colloidal humus compost in large amounts. Just take a look at the ball of colloidal humus to the right!