Cinnamomum cassia and can easily be made into powder using a coffee or spice grinder, whereas cassia sticks are extremely hard and are usually made up of one thick layer. Cassia buds, although rare, are also occasionally used as a spice. They resemble cloves in appearance and have a mild, flowery cinnamon flavor. Cassia buds are primarily used in old-fashioned pickling recipes, marinades, and teas. Chinese cassia (called "ròu gùi"; 肉桂 in Chinese) is produced primarily in the southern provinces of Guangxi, Guangdong, and Yunnan. It is considered one of the 50 fundamental herbs in traditional Chinese medicine. Due to a blood-thinning
Cassia gum on November 21, 2003 (GRN 139), both of which were not evaluated due to notifier's request to cease evaluation. In June 2008, specialty firm Lubrizol Advanced Material filed a petition to the FDA proposing that food regulations be amended to provide for the use of cassia gum as a stabilizer in frozen dairy desserts. Approval in the US is still pending, with no clear indication of when it may be obtained. In 2010, cassia gum received EU approval for human food applications. It is used as a thickener and gelling agent, and has E-number E427 in food and E499 in