The consensus seems to be that, unless you have something to bake right away in which you could use the buttercream, you should freeze it. That's right: don't toss that buttercream! It will remain good in the refrigerator for 4-5 days. Alternatively, put it in an airtight container and freeze it up to 3 months. When ready to use again, take out of the freezer and place in the refrigerator overnight to thaw.
The pH scale runs from 0 to 14, with each number assigned a different color. At the bottom of the scale sits red, which represents the most acidic, and a dark blue at its opposite end represents 14 and alkalinity. In the middle zone, the pH scale becomes neutral. Milk has a pH of 6 and a neutral off-white color.
The acidity or alkalinity of a substance is measured using the pH scale. A high pH represents a substance which is alkaline and a low pH represents a substance that is acidic. In order to test the pH of a substance special paper is used that changes color when reacting with the material.Acidic substances turn the paper shades of red/orange, while alkaline substances turn the paper shades of blue/green.A neutral pH will turn the paper yellow.he main ingredient in household bleach is sodium hypochlorite. This is usually diluted with water to a concentration of approximately 5 percent. The pH of this solution is approximately 11. This means that it is very alkaline and pH paper will turn dark blue/purple when it makes contact with household bleach.