Jam comparison chart  
   
Homemade/Handpicked Organic Sugar Free Jam Assumptions
  total cost cost per ounce Mileage Reibursement
  hours 3 $24.00 [1] $0.19 $0.50 [2]
  miles 64[3] $32.00 [4] $0.25 Cross Atlantic Mileage Reimbursement
  fruit cost $29.75 [5] $0.23 $1.29 [6]
  jars $10.65 [7] $0.08 Ounces made
  pectin $4.99 [8] $0.04 128[9]
      total cost/oz $0.79    
  with carbon   total cost/oz $0.80    
   
Bionaturae Organic Fruit Spreads from Italy[10]   Assumptions
  total cost cost per ounce Cases in a shipment
  land miles 45[11] $22.50 $0.00 150
  sea miles 3564[12] $4,597.56 $0.27 Jars in a case
  average price $4.27 [13] $0.47 12
  total cost/oz $0.74 Ounces in a shipment
  with carbon   total cost/oz $0.75   17100
  Ounces in a Jar
            9
   
Food For Thought mixed berry sweetened only with juice[14] Assumptions
  land miles 265[15] $132.50 $0.02 Cases in a shipment
  average price $7.12 [16] $0.75 50
  total cost/oz $0.77 Jars in a case
  with carbon   total cost/oz $0.77   12
  Ounces in a shipment
  5700
  Ounces in a Jar
            9.5
Carbon Footprint (tons of Co2)[17]     Assumptions      
  Homemade 353 2.76 $0.01 1 metric ton = 2204.62 lbs  
  Bionaturae 19891 1.16 $0.00 1000 miles =[18] 2.50[19] metric tons of C02 (deisel semi truck)
  Food for Thought 1461 0.26 $0.00 1 pound CO2/mile = 5.51  
  CO2 per ounce C02 price per CO2/oz 1 lb CO2 = $0.01 [20]  
            $/mile/ounces = $0.00 0.00204961  
[1]
at $8/hour
[2]
http://www.panache-yes.com/mileagerate.html
[3]
to makielski - 7.8 miles one way
http://maps.google.com/maps?q=7130+Platt+Rd.+Ypsilanti,+MI.+48197&oe=utf-8&rls=org.mozilla:en-US:official&client=firefox-a&um=1&ie=UTF-8&hq=&hnear=7130+Platt+Rd,+Ypsilanti,+MI+48176&gl=us&ei=9gFXTIW5L8rNngeS4r22Aw&sa=X&oi=geocode_result&ct=title&resnum=1&ved=0CBMQ8gEwAA

to toth - 24.2 miles one way
http://maps.google.com/maps?q=13007+E.+Michigan+Ave++Grass+Lake,+MI+49240&oe=utf-8&rls=org.mozilla:en-US:official&client=firefox-a&um=1&ie=UTF-8&hq=&hnear=13007+E+Michigan+Ave,+Grass+Lake,+MI+49240&gl=us&ei=jgJXTO6VBM6KnQfmzIiYBA&sa=X&oi=geocode_result&ct=title&resnum=1&ved=0CBMQ8gEwAA
[4]
roundtrip to toth and makielski * auto reimbursement
[5]
3.5 lbs of blueberries and 5 quarts of blackberries
[6]
http://www.gsa.gov/portal/content/100715 AND reimbursement for nautical miles is based on airplane mileage (SMs) at $1.29 where 1 NM equals 1.15077945 SMs
[7]
16 1/2 pint jars
[8]
Pomona's Pectin
[9]
16 jars * 8 ounces a jar
[10]
http://www.bionaturae.com/spread.html
[11]
745 miles to North Franklin Connecticutt
http://maps.google.com/maps?oe=utf-8&rls=org.mozilla:en-US:official&client=firefox-a&q=north+franklin+connecticut&um=1&ie=UTF-8&hq=&hnear=North+Franklin,+CT&gl=us&ei=yHRhTPq4M8mmnQeqyrjNAQ&sa=X&oi=geocode_result&ct=title&resnum=1&ved=0CBYQ8gEwAA
[12]
PLUS the 4102 nautical miles from the port of New Haven, CT to Naples, Italy (the nautical miles turn into 3564.54054 standard miles)

http://www.portworld.com/map/
and
[13]
http://www.shoporganic.com/prod_detail_list/brand_bionaturae AND Arbor Farms
(the average of $4.55 and $3.99)
[14]
http://www.foodforthought.net/catalog/fjs-mixed-berry.html
[15]
Homer Michigan from Ann Arbor

http://maps.google.com/maps?oe=utf-8&rls=org.mozilla:en-US:official&client=firefox-a&um=1&ie=UTF-8&cid=0,0,7345297839965306391&fb=1&hnear=Ann+Arbor,+MI&gl=us&daddr=10704+Oviatt+Road,+Honor,+MI+49640&geocode=6232087868793960897,44.773043,-86.023164&ei=p3dhTNLQCoGhnQfO08iWDQ&sa=X&oi=local_result&ct=directions-to&resnum=1&ved=0CBcQngIwAA
[16]
$8.25 online price averaged with $5.99 at Arbor Farms

http://www.foodforthought.net/catalog/fjs-mixed-berry.html
[17]
http://www.carbonfootprint.com/calculator.aspx
[18]
http://www.carbonfootprint.com/calculator.aspx
[19]
http://www.carbonmanagers.com/vehicle-carbon-footprint.aspx
[20]
http://store.terrapass.com/store/c/18-carbon-offsets.html