Added to 375 mL YEP	pH before autoclaving	pH after autoclaving and adding glucose to 2%
10 ml 1N HCl	4.0	4.0
2.25 ml 1N HCl + 7.75 mL water	5.46	5.56
10 mL water	Not measured	6.65
6.66 mL 1.5 M NaCl + 3.33 mL water	Not measured	6.72
7 mL 1N NaOH + 3 mL water	8.46	8.24