Tahini United States, sesame tahini, along with other raw nut butters, was available by 1940 in health food stores. Tahini is made from sesame seeds that are soaked in water and then crushed to separate the bran from the kernels. The crushed seeds are soaked in salt water, causing the bran to sink. The floating kernels are skimmed off the surface, toasted, and ground to produce an oily paste. Because of tahini's high oil content, many manufacturers recommend refrigeration to prevent spoilage. This is particularly true among makers of raw, organic tahini, who will often prepare their tahini at low temperatures
Hard-paste porcelain although this name has long fallen out of use. Hard-paste porcelain is now differentiated from soft-paste porcelain mainly by the firing temperature, with the former being higher, to around 1400°C, and the latter to around 1200°C. Depending on the raw materials and firing methods used, hard-paste porcelain can also resemble stoneware or earthenware. Hard-paste porcelain can also be used for unglazed biscuit porcelain. It is a translucent and bright, white ceramic. Hard-paste has the advantage over soft-paste that it is less likely to crack when exposed to hot liquids, but the higher firing temperature of hard-paste may necessitate a second