Krups Espresso Vivo - Manual (Page 15)

The pitcher that you are using is not
is recommended that you use
a stainless steel frothing pitcher.)
Cold conducts better to metal than to
glass or plastic.
The type of milk is not suitable.
We recommend using 2% or skim milk.
Whole milk is acceptable, but due to the
fat molecules, it will not have as dense a
froth, as if you were to use 2% or skim
milk.
Your KRUPS is covered by the
following warranty:
If from date of purchase within one year this
KRUPS product fails to function because of
defects in materials or workmanship,
KRUPS North America will, at its option,
repair or replace the unit without charge,
provided the owner has a proof of date of
purchase.
This warranty will be void if malfunction
was caused by damage to the product by
accident, misuse, use on frequency or
voltage other than marked on the product
and/or described in the instructions, abuse
including tampering, damage in transit, or
use for commercial purposes. This warranty
gives you specific legal rights, and you may
also have other rights which may vary from
state to state.