Liquid baby formula and food, juice, water and other baby items - these are allowed in your carry-on baggage or personal items in quantities greater than 100 ml. You can take these through the security checkpoints and aboard your plane. However, you must be travelling with an infant under two years of age (0-24 months). You may bring gel or ice packs to keep your baby products cool. All items including formula must be presented to the Screening Officer and will be inspected.
CATSA recommends avoiding metal-lined containers when travelling with powdered formula in your carry-on.