For those times when you're all out of frozen peas.
- 1 cup rubbing alcohol (70 per cent isopropyl alcohol)
- 2 cups water
- 2 1L freezer bags (make sure they are good quality to prevent leaks)
- Pour alcohol and water into a freezer bag, remove excess air and seal.
- Place inside the second freezer bag and remove excess air before sealing.
- Freeze and use as needed.
- You can also use some scrap material to sew a cover to act as a barrier from direct contact with the freezer pack.