What are the small blue canisters in the probiotic jar for?

Question:
What are the small blue canisters in the probiotic jar for?

Answer:
The small blue canister is a desiccant. The desiccant helps to absorb moisture and maintain dryness in the jar. Moisture can be damaging to probiotic bacteria and therefore these cannisters must be retained in the container with your probiotics for the duration of use.