# Is it OK to use formula after 4 weeks of opening?

**Formula**isn't sterile. You can't guarantee that your baby won't get sick if you keep your

**formula**for more than

**4 weeks after opening**.

Likewise, people ask, does formula really go bad after 1 month?

Prepared **formula** can be stored in the refrigerator for up to 24 hours before using. **Do** not freeze prepared **formula**. Powdered **formula** can be used for **one month after** it has been opened. We don't recommend using the **formula after** the 30 days of opening because the nutrients start to degrade.

Furthermore, does opened formula go bad? Baby **formula** lasts for 24 hours once **opened**. Nutrients deteriorate with time and need to be at a certain level for proper infant development. So, **DO** NOT use baby **formula** after the manufacturer recommended use by date.

Also Know, how long can you keep a tin of formula once opened?

A prepared (but untouched) bottle of **formula can** be stored in the back of the **fridge** for 24 hours. **Opened** containers of ready-to-feed and liquid concentrate formulas are good for 48 hours. Powdered **formula should** be used within **one** month of **opening** the **can** or tub. Your **fridge should** be at 4°C or 40° F.

What do you do with opened baby formula?

Place any **opened** ready-to-feed liquid **formula** in a sealed container and discard any unused portions after 48 hours. Store liquid concentrate **formula**. Store **opened** liquid concentrate **formula** in a covered container and refrigerator immediately after opening.