Proper Storage
The shelf life of yerba mate depends on how it’s stored. It can generally last between 1 to 2 years if stored properly in a cool, dry place, away from direct light and moisture. It’s recommended to check the yerba mate for signs of spoilage, such as a musty or moldy smell, discoloration or a change in taste. The yerba mate should be discarded if any of these signs are present.
Storing yerba mate properly can prevent health risks, such as bacterial contamination or harmful microorganism growth. Opened yerba mate remains fresh and safe for consumption for a period of time with proper storage methods. It is crucial to keep the South American tea in an airtight container to protect it from moisture and air exposure.
Shelf Life
The South American tea has a shelf life of one to two years before needing replacement if stored properly. Proper storage involves an opaque, airtight container in a cool, dry, dark place away from light, moisture, and pantry items that can transfer flavor.
When drinking the South American tea, the gourd or mug can be refilled until the flavor is gone, ranging from 10 to 30 refills depending on size and amount used. More of the tea can be added for additional steeps instead of using new yerba mate. The South American tea can also be steeped overnight by combining it and water in a sealed glass jar.
Health Effects
Drinking large amounts of the South American tea (1-2 liters daily) long-term increases cancer risk. The caffeine in it can worsen diarrhea and increase eye pressure for 90+ minutes, which is problematic for people with glaucoma.
More on Storage
Properly storing the botanical involves a cool, dry location like a paper bag, tea tin or glass jar. Aged yerba mate stored this way improves subtly for years, retaining a matte sheen on yellowed leaves without becoming overly dry. It develops nuanced flavors compared to bitterness from improper storage.
History and Culture
The South American tea is popular in South America, consumed more than coffee. Origins are filled with folklore. The process of making it is similar to tea with some key differences like harvesting, roasting, curing and grinding. Argentinians usually drink the botanical in the morning with fruit juice or at sunset either hot or cold. Sharing the South American tea forges emotional links between people beyond the act of drinking something together.
Yerba mate is a species of holly grown in South America. The indigenous Guarani tribe first cultivated the botanical. They made a tea by steeping the dried leaves in hot water. This beverage is popular in Paraguay, Argentina, Uruguay, Bolivia, Brazil and Chile. The botanical contains caffeine. The tea has hints of tobacco and oak flavors. It is often consumed in the morning to increase energy. However, South Americans drink it throughout the day. Sharing mate with others is an important social custom.
Health Benefits and Risks
Yerba mate may provide some health benefits. However, drinking very hot yerba mate for a long time could increase cancer risk. As a precaution, avoid drinking mate at high temperatures. The health effects of yerba mate need more research. But yerba mate appears less risky than tobacco.
Preparation Methods
There are several ways to prepare the botanical. Use a gourd and metal straw, the traditional method. Or, brew yerba mate tea bags in hot water. Some brands sell canned and bottled yerba mate too. Most people can enjoy the South American tea in moderation. Those sensitive to caffeine should limit intake, especially in the evening.