Draw a poka yoke and explain how it work and how it will improve the current issue. Each poke yoke should help to solve each problem presented below:

Luisa has a baby. When she is preparing the milk she is always concerned about the correct temperature of the milk. She is actually using a traditional thermometer, but you are a designer and you would like to submit a proposal to the bottles manufacturer so they can build a new bottle to help moms finding de ideal milk temperature. Please show your proposal.