▁leaves , ▁in ▁varying ▁sizes ▁to ▁ste ep ▁single ▁or ▁multiple ▁serv ings ▁at ▁once . ▁Common ▁shapes ▁for ▁inf users ▁include ▁spher ical , ▁con ical ▁and ▁cyl ind rical . ▁One ▁style ▁of ▁inf user ▁is ▁a ▁split ▁sphere ▁with ▁tong - like ▁handles ▁to ▁open ▁its ▁mesh ▁container . ▁ ▁The ▁inf user ▁is ▁placed ▁in ▁a ▁cup ▁or ▁pot ▁of ▁hot ▁or ▁bo iling ▁water , ▁allowing ▁the ▁tea ▁to ▁bre w ▁without ▁loose ▁tea ▁leaves ▁sp illing ▁into ▁the ▁pot ▁or ▁cup . ▁A ▁rod ▁or ▁chain ▁is ▁commonly ▁attached ▁to ▁the ▁container ▁of ▁the ▁inf user ▁to ▁simplify ▁retr ieval ▁from ▁the ▁pot ▁or ▁cup . ▁Inf users ▁with ▁large ▁holes ▁may ▁not ▁catch ▁all ▁the ▁leaves , ▁requiring ▁the ▁use ▁of ▁a ▁tea ▁stra iner ▁to ▁remove ▁the ▁remaining ▁pieces . ▁ ▁French ▁press ▁While ▁not ▁common , ▁a ▁French ▁press ▁may ▁be ▁used ▁as ▁a ▁tea ▁inf user . ▁However , ▁most ▁te as ▁are ▁inf used ▁only ▁for ▁a ▁limited ▁time ▁and ▁then ▁removed ▁from ▁the ▁water ▁so ▁that ▁the ▁drink ▁does ▁not ▁become ▁bitter . ▁ ▁See ▁also ▁Te a ▁culture ▁ ▁References ▁ ▁Category : Te aware <0x0A> </s> ▁The ▁Log Sum Exp ▁( L SE ) ▁( also ▁called ▁soft max ) ▁function ▁is ▁a ▁smooth ▁maximum ▁– ▁a ▁smooth ▁approximation ▁to ▁the ▁maximum ▁function , ▁mainly ▁used ▁by ▁machine ▁learning ▁algorithms . ▁It ' s ▁defined ▁as ▁the ▁log arith m ▁of ▁the ▁sum ▁of ▁the ▁expon entials ▁of ▁the