y ▁Ac id ifier ▁House , ▁where ▁it ▁was ▁repeatedly ▁p ump ed ▁through ▁wooden ▁v ats , ▁which ▁contained ▁wood ▁sh av ings ▁and ▁B acter ium ▁Ac eti . ▁Over ▁several ▁days , ▁the ▁alco hol ▁was ▁converted ▁into ▁ac etic ▁acid ▁( vin eg ar ). ▁The ▁new ▁was h ▁was ▁he ated ▁by ▁steam ▁co ils , ▁and ▁the ▁ac etic ▁acid ▁and ▁water ▁was ▁dist illed ▁off , ▁in ▁the ▁two - store y ▁Ev apor ator ▁House . ▁The ▁acid ▁dist ill ate ▁was ▁neutral ised ▁with ▁milk ▁of ▁l ime ▁to ▁produce ▁ac et ate ▁of ▁l ime , ▁and ▁this ▁solution ▁was ▁concentr ated ▁for ▁ev ap oration ▁on ▁a ▁he ated ▁revol ving ▁drum , ▁where ▁it ▁was ▁sc rap ed ▁off ▁as ▁solid ▁fla kes . ▁The ▁bag ged ▁product ▁was ▁then ▁sent ▁to ▁Mar ib yr n ong ▁for ▁conversion ▁into ▁ac et one . ▁Ac et one ▁enabled ▁the ▁combination ▁of ▁nit rog ly cer ine ▁and ▁tr init ro cell ul ose ▁to ▁form ▁cord ite . ▁ ▁Al co hol ▁dist ill ation ▁at ▁the ▁factory ▁was ▁approved ▁in ▁ 1 9 1 9 , ▁due ▁to ▁short ages ▁of ▁certain ▁gr ades ▁of ▁concentr ated ▁alco hol , ▁and ▁the ▁dil ute ▁alco hol ▁produced ▁by ▁the ▁fer ment ation ▁of ▁mol ass es ▁was ▁dist illed ▁to ▁produce ▁concentr ated ▁alco hol ▁in ▁the ▁Al co hol ▁Still ▁House , ▁a ▁two - store y ▁eastern ▁extension