Was your lemonade carbonated? Carbonation can reduce perceived sweetness: http://www.gastrojournal.org/article/S0016-5085%2813%2900798-1/pdf http://www.gastrojo

Was your lemonade carbonated? Carbonation can reduce perceived sweetness: http://www.gastrojournal.org/article/S0016-5085%2813%2900798-1/pdf http://www.gastrojournal.org/article/S0016-5085%2813%2900798... Lower serving temperature will also reduced perceived sweetness and soda is often served with ice: http://aless.ecc.u-tokyo.ac.jp/wordpress/web/wp-content/uploads/2010/04/Bartoshuk-et-al-1982-Effect-of-temperature-on-the-perceived-sweetness-of-sucrose.pdf http://aless.ecc.u-tokyo.ac.jp/wordpress/web/wp-content/uplo... (0.5M is 171g/l, approximately double what you'd find in soda)