





SOFT RESINS IN SULPHURED AND UNSULPHURED HOPS. 3 
CHANGES IN PHYSICAL APPEARANCE. 
On receipt of the various samples of hops from Perkins, Cal., in 
1911, they were examined and the following notes taken respecting 
their physical characteristics: 
Sulphured hops in the original lot.—Fine fresh hop flavor; oily feeling; lupulin 
sticky; aroma excellent; color bright, characteristic of new fresh hops; color of 
lupuln bright. 
Unsulphured hops in the original lot.—Fine fresh hop flavor; oily feeling; lvpulin 
sticky; aroma excellent; color bright, characteristic of new fresh hops, though some- 
what greener in appearance than the corresponding sulphured sample; color of luptlin 
bright. 
On December 1 of the three following years, two samples each 
from cold and from open storage were examined and the following 
notes were taken on their physical characteristics: 
Sulphured hops in cold storage one year.—Fresh hop flavor; oily feeling; lupulin 
sticky; aroma good; color darker than the original sample, not so bright and charac- 
teristic; color of lupulin bright. 
Unsulphured hops in cold storage one year.—Fresh hop flavor; oily feeling; lupulin 
sticky; aroma good; color much darker than the original sample, not so bright and 
characteristic; color of lupulin bright. 
Sulphured hops in open storage one year.—Strawlike flavor; oily feeling; lupulin 
less sticky; aroma disagreeable; color dull, bright color having disappeared; color of 
lupulin dull. 
Unsulphured hops in open storage one year.—Strawlike flavor; oily feeling less notice- 
able; lupulin less sticky; aroma disagreeable; color very dull; color of lupulin dull. 
Sulphured hops in cold storage two years.—Decided strawlike flavor; oily feeling very 
slight; lupulin slightly sticky; aroma slightly hoplike; color dark yellow, brightness 
having disappeared; color of lupulin dull. 
Unsulphured hops in cold storage two years.—Most decided strawlike odor, somewhat 
musty; oily feeling practically gone; lupulin not sticky; aroma like musty straw; color 
dark brownish yellow; color of lupulin very dull. 
Sulphured hops in open storage two years.—Decided strawlike flavor; oily feeling 
practically gone; lupulin slightly sticky; aroma that of musty straw; color dark brown- 
ish yellow; color of lupulin very dull. 
Unsulphured hops in open storage two years.—Very decided musty flavor; oily feeling 
gone; lupulin very slightly sticky; aroma that of musty straw; color dark brownish 
yellow; color of lupulin very dark and dull. 
Sulphured hops in cold storage three years.—Most decided strawlike flavor, somewhat 
musty; oily feeling gone; lupulin very slightly sticky; aroma that of old musty straw; 
color dark brownish yellow; color of lupulin very dark and dull; hop cones falling 
apart. 
Unsulphured hops in cold storage three years —Very decided musty, strawlike flavor; 
oily feeling entirely gone; lupulin not sticky; aroma that of old musty straw; color very 
dark, dirty brownish yellow; color of lupulin very dark and dull; hop cones falling 
apart. 
Sulphured hops in open storage three years.—Very decided musty, strawlike flavor; 
oily feeling entirely gone; lupulin not sticky; aroma that of old musty straw; color dark 
brownish yellow; color of lupulin very dark and dull; hop cones fallen apart. 
Unsulphured hops in open storage three years.—Most decided musty, strawlike flavor; 
oily feeling entirely gone; lupulin not sticky; aroma that of old musty straw; color very 
dark brownish yellow; color of lupulin very dark and dull; hop cones fallen apart. 
