Thermos for coffee: Stainless steel vs. glass as material may change taste
A cup of coffee may spoil the morning or refreshment times unless we pick the thermos for coffee wisely. According to researchers, stainless steel thermos can change the flavor of the beverage after several hours of keeping it, while a thermos with a glass refill has no impact on the flavor. Let’s find out more information about that problem in this context.
Why does coffee taste different in stainless steel?
Many people claim that their coffee flavor has changed after they stored it in a stainless steel thermos for several hours while the heat still remains. The following points are worth our consideration:
Metallic flavor
Stainless steel has a strong metallic flavor that can affect the taste of coffee or other drinks.
Electropolishing phenomena
Some tumblers use a rougher. When hot drinks contact this rougher surface for several hours, it can create electropolishing phenomena. Stainless steel molecules release into water and change the taste and the smell of the coffee.
Electropolishing phenomena
This phenomenon makes the drink toxic and will affect the health of regular users.
The tarnish
Stainless steel refill is oxidized after a period of time and affects the drink if it is not cleaned. This is an important thing we need to care about before choosing the stainless steel thermos for coffee.
Thermos with glass refill is safe and will not change the coffee taste
High-quality neutral glass refills in thermos will keep the heat longer than stainless steel refills, according to researchers. No chemical or physical reaction will happen when water contacts the glass surface. It retains the flavor and taste of coffee or any other drinks. Thermos with glass refill is the choice of many people when choosing thermos for coffee.
Thermos with glass refill is the choice of many people
Thermos with glass refill, however, has one issue: it's fragile. The inner glass can be broken if the thermos is dropped from about 10 centimeters high. Users need to take care of it and follow the manual.
The most recommended thermos for coffee
Thermos for coffee model 0538N2.E manufactured by Rang Dong, a Vietnamese leading producer of light sources and vacuum flasks, has won customers' trust. The model is designed to keep both hot and cold drinks at the optimal temperature for up to 24 hours. Push-button lid helps relieve users from the hassles of screwing and unscrewing. It’s cool to the touch while filled with hot liquids. A condensation-free surface ensures the thermos won’t slip from our grip.
Stylist and youthful personal thermos
Thermos model 0538 N1.E adds exceptional features by carrying a two-layer cover cup. This special cup can be 'dismantled' easily to make two separate cups. It is helpful in sharing water, tea, or coffee with your loved one.
Given the context of the COVID-19 pandemic, the two-layer cup helps us stayed connected with others while still keeping us safe.
Should you have any questions, wish to share your ideas of the thermos, or request a quotation, please send us an email to export@rangdong.com.vn.
Our website: vacuumflask.rangdong.com.vn.
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