11. What lab test do you use to know the level of oxygen inside the package without piercing the package with oxygen testing instruments?
First you should select the appropriate type and size of an absorber sachet. The container’s material should have a high oxygen barrier. Put food and absorber inside the container together, including one oxygen indicator tablet and position this First you should select the appropriate type and size of an absorber sachet. The container’s material should have a high oxygen barrier. Put food and absorber inside the container together, including one oxygen indicator tablet and position this indicator in a way so that it is easily observed inside the container. When exposed to air, the oxygen indicator tablet will show blue. When the environment contains no oxygen (oxygen concentration< 0.1%), the tablet color will be in pink. When exposed to air (with oxygen) again, the color will change back to blue. Once the indicator is properly placed inside, seal the container completely.
