ice cream in a bag

Alberic squeezes his homemade ice cream out of a plastic bag into a bowl.

ice cream in a bag

make ice cream

may 26

Ready for the inside scoop? In today’s STEAMwork science exploration, we’re making (and tasting!) a yummy experiment. You’ve got this one in the bag, dreamers!

additional resources

the science behind making ice cream


  • ½ cup of heavy cream or half and half 
  • 1 tablespoon of sugar 
  • ¼ teaspoon of vanilla extract
  • 2 quart-size plastic bags
  • Salt
  • 5 or more cups of ice
  • 1 gallon-size plastic bags
  • towel or gloves


  1. 1. Measure the cream, sugar, and vanilla extract into the quart-size bag. Remove the extra air and zip it up tightly.
  1. 2. Place the ice cream bag in a second quart-size bag to reduce the risk of spills. Zip up tightly.
  1. 3. Fill the gallon-size bag with ice. Add the salt. Put the sealed smaller bags inside. Now zip up the larger bag.
  1. 4. Shake and shake the bags to make ice cream! It will take about 5 to 10 minutes until the cream hardens.
  1. 5. Take the smaller bag out of the larger one. Eat the ice cream right out of the bag!