Requirements (Instruments, Chemicals & Other) :

1. Desiccator
   
2. Analytical Balance
   
3. Sulphuric acid
   
4. Measuring cylinder
   
5. Distilled water
   
   

Procedure :

Determination food stability :

1. Prepare 0%, 10%, 30%, 50% and 70% solutions of sulphuric acid and pour it in five different desiccators.
   
2. Weigh 10 g bread sample and place in each desiccator.
   
3. Weigh and observe the sample after 3 days.
   
4. Weigh and observe the sample after 6 days.
   
5. Weigh and observe the sample after 9 days.
   
6. Record the final weight change and observe the microbial growth in the samples.