Which preserves a sandwich better, ziploc bag or aluminum foil?

Subject: Which preserves a sandwich better, ziploc bag or aluminum foil?

Date: Sat Apr 24 15:05:45 1999
Posted by Jim Harkins
Grade level: 7-9 School: Jerusalem Avenue Middle School
City: Bellmore State/Province: NY Country: USA
Area of science: Microbiology
ID: 924984345.Mi

Message:


Ziploc bag preserved better, but why?  Is it the presence of 
light getting into the bag or is the ziploc bag really airtight?

Re: Which preserves a sandwich better, ziploc bag or aluminum foil?

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