The verification of cheap, easily accessible pH meters in at-home laboratories also illuminates opportunities for other future labs. For example, if one assumes that the concentration of commercially accessible vinegar is reported accurately, students could use it to standardize a solution of sodium bicarbonate. This sodium bicarbonate could then be used to titrate other household acids, such as lemon juice, to calculate the acid (citric acid, in this case) concentration. Another way to increase the educational value of labs using household products may be to encourage a teaching assistant or professor with access to a lab to record "known" values of variables including the mass, pH, or other metrics of standard measurements of common household chemicals. An example of this might be the mass of a teaspoon of sodium bicarbonate, or the pH of a 5% commercial vinegar solution.