80 MISC. PUB. 190, U.S. DEPT. OF AGRICULTURE 
damaged, and not more than one sixth of this amount, 
or 0.5 percent, may be affected by decay. 
Unclassified grapes shall be mature and shall not 
contain more than 10 percent, by weight, of berries 
in any one container which are affected by decay and 
they shall not contain more than 10 percent, by 
weight, of bunches in any one container* which are 
immature. 
MATURITY REQUIREMENTS FOR GRAPES 
‘“ Well matured ’” means that each bunch of grapes 
shall show a sugar test of not less than 17 percent 
soluble solids in juice, as determined by the Balling 
or Brix scale hydrometer, except that the Flame 
Tokay variety shall test not less than 18 percent, 
and except that Malaga, Sultanina (Thompson Seed- 
less), and all muscat varieties shall test not less 
than 20 percent when produced in any district ex- 
cept Imperial Valley, Coachella Valley, or Palo Verde 
Valley of California, or any section of Arizona, in 
which districts these varieties shall test not less 
than 18 percent. 
“Mature” for Malaga, Sultanina, Flame Tokay, 
Rose of Peru, and similar varieties means that each 
bunch of grapes shall show a sugar test of not less 
than 17 percent of soluble solids in juice, as de- 
termined by the Balling or Brix scale hydrometer, 
except that the varieties Emperor, Gros Colman 
(Dodrelabi, Bleu Grau, Servian Blue, Fresno Beauty), 
Pierce Isabella (Pierce, Isabella Regia), Concord, 
Olivette Blanche, Blaney White (Rish Baba, Hum- 
phrey Ladyfinger), Red Malaga, (Molinera Gordo), 
Ribier, Khalili, and Dizmar (Persian 23), shall test 
not less than 16 percent. 
“Mature” for Burger, all muscat varieties, Ali- 
cante Bouschet, Zinfandel, and similar varieties means 
that the average or composite test of ali the grapes in 
each container shall be not less than 17 percent of 
soluble solids in juice, as determined by the Balling 
or Brix scale hydrometer, except Burger, which shall 
test not less than 16 percent, and except muscat va- 
rieties, which shall test not less than 18 percent. 
COLOR REQUIREMENTS FOR GRAPES © 
“ Uniformly well colored” in grades for grapes, 
means in the case of: 
34 See footnote 25. 
