Editing Tempera (section)

===Pre-made paints===
Apart from the traditional process of mixing pigment with egg yolk, new methods include egg tempera sold in tubes by manufacturers such as Sennelier and Daler-Rowney. These paints do contain a slight amount of oil to enhance durability within the container. Notable egg tempera artist and author Koo Schadler points out that because of this addition of oil "tubed 'egg tempera' paints are actually 'tempera grassa', an emulsion of egg yolk and a drying oil (generally with other additives, such as preservatives and stabilizers). Tempera grassa has some of the working properties of both egg tempera and oil painting and is a perfectly viable medium – however it is not the same as pure, homemade egg tempera and behaves differently."<ref>{{Cite web |url=https://www.kooschadler.com/techniques/history-egg-tempera.pdf |title=History of Egg Tempera Painting |date=2017-07-18 |website= |last=Schadler |first=Koo}}</ref>[[Marc Chagall]] used Sennelier egg tempera tube paints extensively.