STANDARDS FOR FRUITS AND VEGETABLES 54 
GRADES 
U.S. No. 1 shall consist of ears of sweet corn of 
similar varietal characteristics (1)* which are fairly 
well formed (2), free from freezing injury, smut, and 
from damage (38) caused by other disease, insects, 
cross-pollination, or other means. Kernels shall have 
reached the milk stage (4) but shall not have ad- 
vanced in maturity beyond the early dough stage (5). 
Unless otherwise specified, each cob shall have not 
less than 4 inches of its length practically filled with 
kernels which are free from injury from any cause. 
U.S. No. 2 shall consist of ears of sweet corn of 
similar varietal characteristics (1) which are free 
from freezing injury, smut, and from serious damage 
(6) caused by other disease, insects, cross-pollination, 
or other means. Kernels shall be mature (7%) but 
not overmature (8) for canning purposes. Unless 
otherwise specified, each cob shall have not less than 
3 inches of its length fairly well filed with kernels 
which are free from injury from any cause. 
Culls are ears of corn which do not meet the re- 
quirements of either of the foregoing grades. 
DEFINITIONS OF TERMS 
As used in these grades: 
1. “Similar varietal characteristics”? means that 
the corn in any lot is of the same general type and 
color. 
2. “Fairly well formed” means that the ear is of 
such shape that trimming is not required for it to 
pass through the cutting machine. 
3. “ Damage” means any injury which materially 
affects the canning quality or which causes an appre- 
ciable waste of corn or loss of labor in preparation 
for canning. Ears which have more than five kernels 
of a color which is materially different from that of 
the majority of the kernels on an ear shall be con- 
sidered as damaged. 
4, “Milk stage” means that the exudate of the 
kernels is milky and not of a watery consistency. 
5. “ Karly dough stage” means that the kernels 
have a heavy, creamy consistency and that moderate 
pressure with the thumb nail is required to break 
10 Numbers in parentheses following grade terms indicate 
where such terms are defined under Definitions of Terms on 
pp. 57 and 58. 
