gas exchange????

Started by jkim23, March 15, 2006, 05:36:38 PM

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jkim23

while using polifill to get gas exchange 4 out 8  of my half pint B+ mason jars got contaminated. Any help of how to lessen the chances of contamination?

conibear

     I drill a quater inch hole in the lid, epoxy a piece of a good quality dust mask over the hole, and use a glove box for any sterile work....conibear....

fish

i allready made normal jars without a filter...
how can i help the gas exchange?