The akpụkpọ na-elekọta ngwaahịa anyị na-eji kwa ụbọchị ihu ọma nwere a ụfọdụ ego nke preservatives, n'ihi na anyị na-ebi n'otu ụwa na nje bacteria, ya mere, ekwe omume nke ọrịa site na mpụga nje bacteria dịkwa ọtụtụ, na ọtụtụ ndị na-azụ ahịa siri ike ime aseptic ọrụ. ..
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