▁acid ▁( v it amin ▁C ). ▁The ▁name ▁" Hi - C " ▁referred ▁to ▁its ▁high ▁vit amin ▁content . ▁Hot - pack ed ▁in ▁en am el - lined ▁ 5 6 - ounce ▁can s , ▁the ▁product ▁needed ▁no ▁re fr iger ation ▁before ▁opening . ▁After ▁test ▁market ing ▁in ▁ 1 9 4 7 , ▁Hi - C ▁orange ▁drink ▁was ▁introduced ▁in ▁ 1 9 4 8 ▁with ▁a ▁massive ▁prom ot ional ▁effort , ▁sp ending ▁thousands ▁of ▁dollars ▁week ly ▁per ▁market ▁on ▁prom ot ions . ▁F oster ▁entered ▁into ▁an ▁agreement ▁with ▁Cl inton ▁Food s , ▁Inc ., ▁to ▁produce ▁and ▁market ▁Hi - C , ▁with ▁F oster ▁man aging ▁the ▁Hi - C ▁business . ▁ ▁Origin ally ▁market ed ▁in ▁the ▁southern ▁United ▁States , ▁Hi - C ▁was ▁introduced ▁into ▁the ▁Los ▁Angeles ▁and ▁San ▁Francisco ▁mark ets ▁in ▁ 1 9 4 9 . ▁As ▁mark ets ▁for ▁Hi - C ▁were ▁expanded ▁nation wide , ▁so ▁were ▁the ▁contract ▁operations , ▁strateg ically ▁located ▁near ▁major ▁market ▁areas . ▁The ▁multi - plant ▁system ▁facil itated ▁quick ▁product ▁sh ipping , ▁minim izing ▁out - of - date ▁mer ch and ise ▁problems . ▁New ▁flav ors ▁of ▁Hi - C ▁fruit ▁drink s ▁were ▁developed ▁as ▁an ▁out g row th ▁of ▁the ▁contract ▁pack er ▁system . ▁Gra pe , ▁the ▁second ▁flav or ▁introduced , ▁evol ved ▁naturally ▁from ▁the ▁fact