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A domestic ice cream maker is a machine used to make small quantities of ice cream for personal consumption. Ice cream makers may prepare the mixture by employing the hand-cranking method or by employing an electric motor. The resulting preparation is often chilled through either pre-cooling the machine or by employing a machine that freezes the mixture. An ice cream maker has to simultaneously freeze the mixture while churning it so as to aerate the mixture and avoid ice crystals. As a result, most ice creams are ready to consume immediately. However, those containing alcohol must often be chilled further to attain a firm consistency. Some machines, such as certain lower-priced countertop models, require the resulting mixture to be frozen for additional time after churning is complete. ==History== Around 1836, Augustus Jackson, an African American confectioner, achieved fame for creating multiple ice cream recipes and pioneering a superior ice cream preparation technique and decoration. In 1843, Nancy Johnson of Philadelphia received the first U.S. patent for a small-scale hand-cranked ice cream freezer. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「ice cream maker」の詳細全文を読む スポンサード リンク
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