These pH test strips used in beer making have a range from 4.6-6.2.
They do not work with water or any other non-ionized solution. They need to be tested against high ionized solutions. Water is not a high ionized solution and other chemicals may dilute the strip to be unreadable.
They do not work with water or any other non-ionized solution. They need to be tested against high ionized solutions. Water is not a high ionized solution and other chemicals may dilute the strip to be unreadable.