Briefing
tereré ContextWe live in the extreme south of Brazil, where there is a culture of drinking a type of tea called chimarrão, or mate. Among teenagers, this culture is still popular but with some changes. While chimarrão is originally a hot drink, teenagers often drink it cold, mixed with juice or soda and call it tereré.Tereré has its origin from the Guaranis, an indigenous group original from South America. There are rumors that people began drinking it cold during the Chaco War, from 1932 to 1935, to avoid drawing the enemies' attention while lighting a fire to boil water for chimarrão.However, the origin is traced back to indigenous people who used maté leaves to filter water from the rivers, preventing schistosomiasis disease before the 1500s.Nowadays, it is enjoyed as a form of leisure and socializing among friends and family. Some customs:- Tereré is usually drunk in circles;- The person who serves others is the same one who prepared it;- In your turn, the drink must br drunken until the end before you pass it to the next person.How to prepareTereré is prepared in the following way:1. In a thermos/cooler, add water and ice2. You may add juice to the water. Powdered juice is commonly used for practicality3. In a gourd or cup, place the metal straw right in the middle4. Fill the gourd with herb until it is half full.5. Pour the water slowly6. It’s ready to drink! Problems- When drunken on the beach, it’s common to get sand on the cup- A cooler isn’t very practical to carry, but smaller thermoses don’t last long; they hold enough for about 6 tererés.- Sometimes, depending on the material of the gourd, the tereré can get too hot.- When drunk with lemon juice (the most common one), oxidation of the straw occurs, as it’s made of metal.- Some straws have holes through which the juice enters. When these holes are too large, the herb is allowed to enter and often causing clogging. Design requirements and maximum costGiven the problems presented for drinking tereré, it is necessary to design a bottle, cup, and straw for the beverage with attention to the following conditions:- Portability and adaptation: The tereré kit must be easy to transport and adapt to the location.- Tradition: It is important to maintain the traditional aspect of the drink.- Temperature: The bottle carrying the juice should keep it cold for several hours, and the cup should not heat up from hand contact.- Durability: Considering that the product will be used frequently, it is important that it is durable and does not deteriorate with use.- Safety: The straw must not have overly large openings for the safety of those drinking.- Efficiency: The bottle used to transport tereré must not leak.- Price: The cost of the kit should not differ considerably from market value, which ranges from 60 to 170 reais.- Additional accessories: Many straws come with a small brush to clean their interior, which is not always efficient. Please if you have…