Many health foods and specialty stores carry iced tea made of whole-leaf tea without additives. Fresh-brewed iced tea is also popular, particularly in smaller independently owned restaurants. Powdered or frozen iced tea is a common preparation at home, due to its ease of use. Although not a traditional way to serve tea, iced tea gained widespread popularity in even rural areas since the late 1980s with canned or bottled tea. Many varieties of tea, including green tea, are available packaged and sold in stores. Many families make their iced tea by either putting much ice in a small amount of strong hot tea or by putting hot tea in a fridge for some time. Common types of iced tea are black, green, oolong (烏龍茶), and many herbals as well. Iced herbal teas are especially popular in the hot summers, where "yin"（陰）or cooling herbs are used to make tea such as chrysanthemum, kuding tea (苦丁茶), etc. Cooled tea (but still warm) was popular throughout ancient times. Refrigerated tea was only available to those politically connected to the Communist Party. The introduction of limited capitalism and the opening markets in the 1990s made refrigeration available to the general population for the first time. China's refrigerator-ownership increased from just 7% of urban families in 1997 to 95% in 2009. Iced tea is sold in 7-Eleven stores and supermarkets. Nestea, Lipton, and Pfanner are the most dominant brands and lemon- and peach-flavored iced teas are the most popular variants. Lipton offers several non-carbonated iced teas under the "Ice Tea" brand and the carbonated variety under the brand "Ice Tea Sparkling". Iced tea is also available in many restaurants and cafés. Half-sweetened iced tea (i.e. 50 g/l sugar compared to the 100 g/l found in soft drinks) is available in most big supermarkets, mainly "Lipton Green". Instant teas are available that can be used to prepare iced tea with cold or hot water which are often called "Krümeltee" (meaning crumb tea or crumble tea) because of the special appearance. Ice tea in Greece is primarily either lemon or peach flavor. Most dominant brands are Lipton, Fuze Tea, Arizona, Nestea, and Life Tsai.