... that the first coffee filter was made from a tin can and blotting paper?

... that coffee filters used to come in threes?

...that the first Melitta round filters had a capacity of up to 25 liters?

... that a black M in a black circle was once a Melitta trademark?

... that the brothers Horst and Willy Bentz were lightning-fast entrepreneurs?

...that the fast-drip aluminum filter was launched over 50 years ago?

...that there's a CD-ROM for Melitta collectors?