Popcorn Quality
Factors influencing popcorn
quality include kernel moisture and expansion ratio, processing
procedures, storage and handling.
To achieve the utmost in
pop-ability, the moisture content of popcorn should be from 13 percent to
14.5 percent; 13.5 percent is considered ideal. A popcorn moisture content over or
under these percentages greatly reduces pop-ability. At Great Western
Products we strive to produce the highest quality popcorn at optimum
moisture levels
Good popcorn should provide at
least 98 percent popped kernels with well under two percent "old maids" or
un-popped kernels. Proper popcorn care at the processing level helps to assure
this. Great Western Products guards against kernel damage which could
lower popcorn quality.
Because popcorn storage and popcorn handling
can affect the moisture content of popcorn -- and therefore the
pop-ability opened packages of raw popcorn kernels should be stored in
airtight containers until used. Stay away from storing popcorn in the
refrigerator. Air inside a refrigerator contains very little moisture this
can reduce the moisture level in the popcorn, and will reduce popcorn expansion.
What makes popcorn
pop? Will any corn pop?
Popcorn is a type of maize, or
corn, and is a member of the grass family. Popcorn is a whole grain and
is made up of three components: the germ, endosperm, and hull. Of
the 4 most common types of corn are sweet, field, flint, and popcorn ...
only popcorn pops! Popcorn differs from other types of corn in that its
hull has just the right thickness to allow it to burst open.
Each kernel of popcorn
contains a small drop of water stored inside a circle of soft starch.
Popcorn needs between 13.5-14% moisture to pop. The soft starch is
surrounded by the kernel's hard outer surface.
As the popcorn kernel heats up, the
water begins to expand. Around 212 degrees the water turns into steam and
changes the starch inside each kernel into a super hot goo. The kernel
continues to heat to about 350 degrees. The pressure inside the grain
will reach 135 pounds per square inch before finally bursting the hull
open.
As it explodes, steam inside
the kernel is released. The soft starch inside the popcorn becomes
inflated and spills out, cooling immediately and forming into the odd
popcorn shape we know and love. A popcorn kernel can expand 40-50 times its original
size!
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