Lub khob rau siv yog ib hom khoom tais diav thiab cov khoom noj uas siv tas pov tseg. Lub khob ntawm lub khob yas muaj xws li ntawv khob, khob khob thiab khob ua npuas ncauj. Cov khoom siv polystyrene yog siv los ua cov khob ua khob haus dej, thiab polypropylene yog siv los ua cov yas khob.
Raws li lawv tau ua rau siv tib zaug, khob thiab lwm yam khoom siv uas zoo ib yam li cov khoom siv thiab cov khib nyiab hauv tsev, xws li cov ntawv pov tseg thiab cov khoom pov tseg yas. Nws tau raug kwv yees hais tias cov tsev neeg nruab nrab muab 70 tawm khob rau txhua txhua xyoo.
Lub khob ntawm pob ntawv uas yog siv tawv zoo li cas tau tsim los ntawm xyoo 1908 los ntawm Lawrence Luellen, thiab thaum xyoo 1912 Luellen thiab Hugh Moore tau ua lag luam Marketing Health Cup, lwm daim ntawv pov thawj. cov txwv tsis pub muaj kis kab mob, uas tshwm sim thaum tib neeg siv lub khob (common) khob los yog ib lub dipper los tuav dej. Lub Health Kup tau hloov dua tshiab tom Dixie Cup, thiab raug xaiv tom qab lub npe ntawm tus menyuam roj hmab .Luellen thiab Moore tom qab tsim ib siv cov ntawv khov khob, uas muaj hau nrog cov duab ntawm cov neeg ntaus pob, cov hnub qub thiab cov tsiaj txhu.