The Impact of coffee cup material: Ceramic vs Stainless Steel vs Plastic. Taste Comparison

The Impact of coffee cup material: Ceramic vs Stainless Steel vs Plastic. Taste Comparison

Published: 28/06/2023 Times Read: 1707 Comments: 0
When choosing a coffee thermos to enjoy your favorite drink on the go, one of the most important decisions you need to make is what material you want it to be made of.
You have three main options: plastic, metal, and ceramic. The material you choose will have an impact on the taste of your coffee.

Here's how plastic, stainless steel, and ceramic thermoses affect the taste of your beverages.

(Preserving taste is not the only factor when choosing a thermos bottle that determines your choice. Design, closure method, body material, capacity, ease of use, cleaning method, weight, durability, and many others also matter. But in this article, we will focus solely on the impact on the taste of the beverages.)

Plastic Absorbs Flavors

Over time, plastic absorbs odors and flavors. You can conduct the following experiment: fill a plastic cup with coffee and drink it. Then rinse the cup and put in some tea. When you taste the tea, you will likely notice notes of coffee that give the tea an unpleasant taste.
If you use the cup exclusively for coffee, the flavors that plastic absorbs and imparts to the beverages may not be as noticeable. However, over time, accumulated flavors and aromas can make it difficult, if not impossible, to perceive the finer tastes and aromas of the coffee.

Stainless Steel Occasionally Imparts Flavors

Stainless steel does not absorb flavors but occasionally imparts an unpleasant taste and aroma to the coffee. Whether this happens due to poor construction or a reaction between one of the coffee's over 1000 compounds and the metal is not always clear. It also does not happen consistently. Coffee enthusiasts share that metal thermoses can impart strange flavors and aromas.

Ceramic is Neutral

Ceramic is the best choice in terms of preserving taste qualities. It does not absorb or impart flavors, without altering the taste or aroma of the coffee.

Double Walls Keep Coffee Hot

Regardless of the bottle you choose, double walls will keep the temperature of the beverages hotter for longer compared to regular bottles. The difference is particularly noticeable in winter when the ambient temperature is much lower.
Since the taste of coffee changes as it cools down, keeping it as hot as possible for as long as possible can allow you to enjoy all the subtle notes and flavors.
You can find many options of thermos bottles on the market - plastic, metal, or ceramic.

We invite you to explore our collection of high-quality Runbott bottles with a unique ceramic reservoir. Our products combine design and quality, and are made of the highest-quality materials, providing excellent durability, comfort, and convenience.

Do you have a favorite coffee bottle? What is it made of? How does it look?

Temperature, Taste, and Durability

These three concepts make Runbot more than just a reusable thermos bottle. The secret lies in the ceramic-coated reservoir, which allows the temperature of the beverages to be maintained for long hours without an unpleasant taste or altered aroma.
• Sleeker and smarter design
• Non-slip rubber base
• Six more colours to choose from.
• Improved vacuum insulation - drinks colder or hotter for longer.


Much more than your average reusable bottle! Made with a ceramic coating, the Runbott will not only maintain the temperature of your favourite drink, it will also maintain the flavour.


The special coating inside a Runbott bottle ensures you enjoy only the original flavours of your drink - no exposed metal inside the bottle means no nasty and unpleasant metallic tastes.


The temperature on the outside won't affect the temperature on the inside - 24 hours cold and 8 hours hot!


Made from high-quality, food-grade stainless steel the Runbott is very strong and resistant to knocks or damage.

• 100% BPA-FREE

No nasty chemicals that are commonly found in plastic water bottles!


Help protect our planet and go plastic-free with a reusable bottle.

Tags: Reusable water bottles

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