Historically, tinctures, teas, and ointments have also been common preparations. Decoction can be used to make tisanes, tinctures and similar solutions. They were refilled with local spirits, herbal tinctures, extracts, and medicinals. Some people also use moonshine alcohol for herbal tinctures. Liquid extracts are liquids with a lower ethanol percentage than tinctures. Rectified spirits are also used for medicinal tinctures and as a household solvent. Extracts may be sold as tinctures, absolutes or in powder form. It is used in mixed drinks, liqueurs, and tinctures, and also as a household solvent. This process is similar to that which was originally employed to make medicinal tinctures. Other options for placenta consumption are tinctures and smoothies. They are usually made by vacuum distilling tinctures. The final product is sold as tinctures (liquid), tablets, pellets, or powder. German heraldry used trefoil to designate colors other than the seven main tinctures (""). The tinctures used were gules; a compony of argent and gules; and argent. Since that time, the great majority of heraldic art has employed these nine tinctures.