Ama-flask okukhiqiza amaseli aklanyelwe ngokukhethekile ukukhula okuphumelelayo nokusabalalisa amangqamuzana ezinambuzane, izinambuzane, noma izilwane ezincelisayo. Izinhlobo ezivame kakhulu zihlanganisa amaflask e-tissue asemaceleni ayisicaba, amaflask e-Erlenmeyer, namaflask wesipina.
Umkhumbi ofanayo wamasiko ungasetshenziswa kabusha, kodwa amathuba okungcola ayakhula ngokuphinda kufakwe kabusha ngenxa yokunqwabelana kokuchitheka okuncane kokuphakathi ekuvulekeni kweflask.