Quality

alfi "Inside" - The Construction of Alfi's Thermal Carafes

German craftsmanship at its best - alfi is the epitome of perfection in quality. Our quality pledge - 5 year guarantee on insulation for all products. alfi draws on the most innovative ideas from the best international design studios and stamps them with the unique alfi hallmark to keep drinks fresh, cool, or hot.

Each alfi thermal carafe and vacuum flask is created with a combination of hand craftmanship and state of the art materials, never compromising quality.

Our Quality Pledge: 5 Years Guarantee on Insulation for all products.

alfi's Vacuum Hardglass Liner

The double walled alfiDur vacuum hardglass liner keeps hot hot and cold cold. Before assembly, each glass liner undergoes an operational test.

Diagram of alfi's Vacuum Hardglass Liner
  1. The hinged lid provides single-hand operation and is food safe.
  2. The twin-walled alfiDur thoughened hardglass liner creates a vacuum between the walls, allowing neither heat nor cold to escape. 100% performance tested.
  3. The seal prevents the escape of radiant heat.
  4. The body of the flask is comprised of high-quality raw materials such as copper and brass. Top quality is achieved by hand craftsmanship.
  5. The seals and screw fittings are food-safe and quality-tested. Each part can be replaced or repaired.

alfi's Top Therm Stainless Steel Liner

Diagram of alfi's Top Therm Stainless Steel Liner

The double walled stainless steel vacuum liner is unbreakable and has the same insulating capability as a hardglass vacuum liner. That is why the Top Therm is especially recommended for commercial use.

alfi's Top Therm Stainless Steel Vacuum Body

Diagram of alfi's Top Therm Stainless Steel Vacuum Body

The double walled stainless steel vacuum body is equivalent to the function and performance of a stainless steel liner. The only difference is that the outside wall of the liner also acts as the carafe. Therefore, these Top Therm products are unbreakable and dishwasher safe.

alfi's Vacuum Flasks

The Insulating Performance

Diagram of alfi's Thermal Insulating Performance

The insulating performance is dependent on size, shape and performance of the vacuum body. On average, the following applies: Drink-filling temperature 200º F after 12 hours 145º F.