Due to the azeotropic effects visible in the distillation process, ethanol cannot be concentrated by ordinary distillation to a ratio of ethanol to water greater than approximately 96 to 4 by weight.[4] The highest concentration of ethanol generally available for human consumption is 190 proof (95% alcohol by volume), which is about 92.4% ethanol by weight
Gem Clear is a brand of neutral grain spirit that is available at 95% alcohol by volume and has no distinctive taste or smell.
