A two-stage method produces a liquid soap, having an alkaline pH and stable viscosity, so as to be efficacious in controlling pathogens and generating a thick lather which optimizes its cleansing and disinfecting effects. The method involves saponification of natural and/or synthetic oils/fats using of two lyes—potassium hydroxide and sodium hydroxide—which, when combined in roughly equal proportions, yield a lathery liquid soap without the need for synthetic surfactants or chemical thickeners. The method is also distinctive insofar as it first produces a solid soap concentrate, from which the liquid soap can be made simply by dissolving the solid soap concentrate in water.

The invention refers to a soap recycling device that recycles solid soap bar remnants into purified liquid soap or purified reconstituted solid soap bars, depending on a user's selected mode of operation of the device. The soap recycling device includes a heat source that melts the solid soap remnants, a UV emitter that sterilizes the solid soap remnants, and a directional valve that selectively delivers the molten soap fluid to a first receptacle capable of storing the soap in liquid form and delivering it for direct usage, for instance for hand washing, and a second receptacle where the molten soap fluid solidifies and turns into a reconstituted solid soap bar. The device includes a user interface that allows selecting the desired operation mode to either liquid or solid soap formation. The device according to the invention is compact and versatile.

The invention refers to a soap recycling device that recycles solid soap bar remnants into purified liquid soap or purified reconstituted solid soap bars, depending on a user's selected mode of operation of the device. The soap recycling device includes a heat source that melts the solid soap remnants, a UV emitter that sterilizes the solid soap remnants, and a directional valve that selectively delivers the molten soap fluid to a first receptacle capable of storing the soap in liquid form and delivering it for direct usage, for instance for hand washing, and a second receptacle where the molten soap fluid solidifies and turns into a reconstituted solid soap bar. The device includes a user interface that allows selecting the desired operation mode to either liquid or solid soap formation. The device according to the invention is compact and versatile.

Methods and systems to manufacture a soap bar comprising post-brew coffee particles are disclosed. A soap bar may comprise multiple post-brew coffee ground particle sizes to take advantage of the benefits associated with each size. For example, the soap bar may comprise espresso grinds (0.20 mm), regular grinds (1.0 mm), and/or coarse grinds (1.5 mm). A saponified fat base, e.g., a milk soap base, a plant oil base, and/or an animal fat base may be obtained and heated to a consistency. Collected post-brew coffee grounds may then be added. The coffee grounds may be anywhere from 1% to 65% of the total weight of the final product, depending on the desired soap quality. The final soap product may comprise coffee ground positive and coffee ground negative layers or portion, or the coffee grounds may be evenly dispersed throughout the product.

Methods and systems to manufacture a soap bar comprising post-brew coffee particles are disclosed. A soap bar may comprise multiple post-brew coffee ground particle sizes to take advantage of the benefits associated with each size. For example, the soap bar may comprise espresso grinds (0.20 mm), regular grinds (1.0 mm), and/or coarse grinds (1.5 mm). A saponified fat base, e.g., a milk soap base, a plant oil base, and/or an animal fat base may be obtained and heated to a consistency. Collected post-brew coffee grounds may then be added. The coffee grounds may be anywhere from 1% to 65% of the total weight of the final product, depending on the desired soap quality. The final soap product may comprise coffee ground positive and coffee ground negative layers or portion, or the coffee grounds may be evenly dispersed throughout the product.

An apparatus and method for melting soap fragments to create a soap bar from the soap fragments. The apparatus includes various replaceable molds to create soap bars having various shapes.

An apparatus and method for melting soap fragments to create a soap bar from the soap fragments. The apparatus includes various replaceable molds to create soap bars having various shapes.

The present invention relates to a method of making a solid cleaning composition. The method can include pressing and/or vibrating a flowable solid of a self-solidifying cleaning composition. For a self-solidifying cleaning composition, pressing and/or vibrating a flowable solid determines the shape and density of the solid but is not required for forming a solid. The method can employ a concrete block machine for pressing and/or vibrating. The present invention also relates to a solid cleaning composition made by the method and to solid cleaning compositions including particles bound together by a binding agent.

A two-stage method produces a liquid soap, having an alkaline pH and stable viscosity, so as to be efficacious in controlling pathogens and generating a thick lather which optimizes its cleansing and disinfecting effects. The method involves saponification of natural and/or synthetic oils/fats using of two lyes—potassium hydroxide and sodium hydroxide—which, when combined in roughly equal proportions, yield a lathery liquid soap without the need for synthetic surfactants or chemical thickeners. The method is also distinctive insofar as it first produces a solid soap concentrate, from which the liquid soap can be made simply by dissolving the solid soap concentrate in water.

The present invention relates to a method of making a solid cleaning composition. The method can include pressing and/or vibrating a flowable solid of a self-solidifying cleaning composition. For a self-solidifying cleaning composition, pressing and/or vibrating a flowable solid determines the shape and density of the solid but is not required for forming a solid. The method can employ a concrete block machine for pressing and/or vibrating. The present invention also relates to a solid cleaning composition made by the method and to solid cleaning compositions including particles bound together by a binding agent.