WHY USE A COFFEE FRESHNESS VALVE?
To produce the freshest coffee possible, oxygen must be kept
away from your fresh roasted coffee. The most economical way to
prevent the deterioration of the coffee is to package the product
as soon after roasting as possible, in an inert atmosphere.
The problem with immediate packaging of fresh roasted coffee
is the out-gassing that occurs after roasting. Out-gassing can
blow a package apart unless the package is relieved as the gas is
released from the beans. If the coffee is not packed until the
out-gassing stops, then the coffee is starting to get stale.
Whole roasted coffee beans can out-gas for 72 hours, some
beans even up to 140 hours. This makes air tight packaging
impractical for fresh roasted coffee beans, unless a relief valve
is added to the package. The various commercially available
valves used by the Marble Manor valve applicators will allow
venting of the pressure within a coffee package while preventing
oxygen from re-entering the package.
Vacuum packing fresh roasted whole bean.
Marble Manor makes valve applicators for automatic form and fill
machines and for the coffee company that uses pre-made bags. The
VA300 series valve applicators will allow you to use standard
pre-made bags and add valves when desired.
The VA300 series make sense since they reduce inventory
requirements, allows maximum flexibility and is the logical step
before Investing in a fully automatic form and fill machine.
When you do invest in a fully automatic machine, remember
Marble Manor. We can equip your horizontal or vertical form and
fill machines with valve applicators. Our VA100 Series Valve
Applicators apply valve from above the film while our VA200
Series Valve Applicators apply from below the film. All of our
various valve applicators heat seal and vent the film in the same
station eliminating set-up difficulties when changing package
Heat sealed low pressure freshness relief
Marble Manor specializes in heat sealed low
pressure relief valves tested and ready to use by the coffee
industry and other industries with products that produce gas. The
object of the valves is to protect the product from oxygen and/or