We made jam and ate it on our
Agriculture Week bread. I think this may have been all around the funnest lesson for the kids. They were so excited to make and eat fresh jam! After tasting this stuff you will want to throw away all your Smuckers jars.
Here's what you need to make enough for 24 kids with 4 oz jars (or half filled 8oz jars ;). Just increase ratios per directions if you want to make more jam in bigger jars and/or for more kids:
3lbs fresh strawberries (you can often get these at the Dollar Store)
3 Gallon size ziplock bags filled with 4 cups of sugar each
2 dozen (or 3 dozen depending on class size)
4oz jars with lids (you can also get 8oz jars from Smart and Final for cheaper than Amazon but 4oz is easier to fill- or ask kids to bring jars from home)
3 batches of Pectin in individual jars. I use this Premium Pectin from Smart and Final. You can also use this
Pectin - check the recipe as the amounts may be slightly different than what I have listed.
6 T Lemon juice to activate pectin
6 Quart size Ziplock bags for strawberries
Extra Gallon size ziplocks
A 1 cup or 2cup measurement cup
Prep:
6 bags of Strawberries- Divide each 1 lb box in half and put it into its own quart size ziplock bag (so you have six bags of strawberries). Wash and hull the strawberries as close to lesson time as possible. You can also have the kids hull or tear off the stems at school. Get all the air out of the bag and seal tightly.
3 jars of pectin- Open each bag of pectin and squeeze completely into its own jar. Add the 2 T lemon juice to activate and seal tightly. You will have three jars of pectin.
3 bags of sugar- with
4 cups measured exactly in each bag. It won't work if the amount isn't exact.
Jars for each student- If you have time run the jars through the dishwasher or rinse with soapy water.
Lesson at school:
Introduction/Discussion- Open the lesson by introducing the ingredients of the jam
1) Strawberries: Where do the berries com from? flowers become fruit/strawberries with seeds on the outside
2) Sugar: Does anyone know how long it takes for sugar to go bad? It lasts forever (because it inhibits microbial growth). The sugar will preserve the strawberries (they would go bad otherwise) and was used in ancient times until we had fridges as a food preservative.
3) Pectin: What is it? pectin is made from the fiber of a plant (cell walls) and is a gelling agent to give the fruit form and shape. (similar to gelatin but gelatin is made from animal collagen).
Tell them they will be mashing strawberries and mixing them with sugar and pectin.
Do Not dig fingernails in the bag! Do Not pound or punch the bag. If the bag gets opened to release air, add pectin or sugar or for any reason make sure it is sealed tightly before proceeding.
Divide kids into 6 groups at outdoor tables. Give each group a bag of strawberries to mash with their hands. It will take at least 5 minutes to get the puree smooth. Kids can take turns with the bag or do it in pairs. Encourage them to go for as long as they can.
Once the strawberries are mashed and smooth carefully measure one cup of mashed strawberries from two bags. So you have a total of 2 mashed strawberry cups in 1 bag of sugar. Mix it well for several minutes. It's amazing how liquidey it gets.
Let the bag sit for a few minutes then add the pectin. Pour the jam into jars leaving a little space at the top. Any excess jam can get poured in the empty pectin jars. It's best to let it set for 24 hours but sometimes it's also easier to just take it straight home! Tell the kids to set it on the counter and eat it the next day (if they can wait that long).
We also ate some jam with our
bread from Agriculture Week. Kids loved it, and then they are more likely to eat it at home.
I highly recommend sending out an email to all the parents in the class telling them about the jam and they should leave it on the counter overnight, then put it in the fridge. Otherwise most of them won't know and it will sit in their kids' backpacks before they wind up just throwing it away and they'll miss out on the world's best jam!