Is Filtered Fridge Water Safe During a Boil Order?

December 22, 2025 3 min read

When a community boil order is announced, many people wonder: is filtered fridge water safe during a boil order? After all, your refrigerator has a built-in water filter that improves taste and reduces contaminants. Unfortunately, the short answer is no.

Fridge filters are designed to reduce chlorine, sediment, and sometimes lead or VOCs, but they are not made to kill bacteria, viruses, or parasites that may be present in the water during a boil order. Let’s break down why filtered fridge water is not a substitute for boiling and what you should do to stay safe.

What Is a Boil Order?

A boil order is issued by local water authorities when the safety of tap water is compromised. Common causes include:

  • Water main breaks

  • Flooding

  • Equipment failures at treatment plants

  • Contamination from bacteria or parasites

During a boil order, residents are told to boil tap water for at least one minute before drinking or cooking with it. Boiling kills harmful microorganisms that could cause illness.

Why Fridge Filters Are Not Enough

Fridge filters use activated carbon or similar media to reduce chlorine, odor, and certain contaminants. Some higher-end filters also reduce heavy metals. However, they are not disinfecting systems.

Here’s what they cannot do:

  • Kill bacteria or viruses

  • Remove parasites like Giardia or Cryptosporidium

  • Guarantee water safety during boil advisories

Even if your filter is NSF/ANSI certified, those standards cover taste, odor, chlorine, lead, or VOCs, not biological pathogens. This is why filtered fridge water is not safe to drink during a boil order.

What to Do During a Boil Order

If your community issues a boil order:

  • Do not use filtered fridge water for drinking, cooking, or brushing teeth.

  • Boil tap water for at least one minute (three minutes at higher altitudes) before using it.

  • Use bottled water if boiling is not possible.

  • Turn off your ice maker and discard any ice made during the boil order.

Do You Need to Replace Your Filter After a Boil Order?

Yes. After the boil order ends, it is recommended to:

  1. Flush your fridge’s water system by running several gallons of clean water through it.

  2. Replace your refrigerator’s water filter. Filters exposed to contaminated water may harbor bacteria and lose effectiveness.

  3. Restart your ice maker and discard the first few batches of ice.

Replacing the filter ensures your fridge is back to providing safe, fresh-tasting water.

Choosing the Right Replacement Filter

When replacing your filter after a boil order, choosing the right certified filter gives you peace of mind and keeps your water tasting fresh. Here’s what to consider:

  • Compatibility – Filters are brand- and model-specific. Always match the filter to your refrigerator to ensure proper fit and performance.

  • Trusted retailer – Be cautious of ultra-cheap filters from international discount sites. Many are counterfeit, with no guarantee of what’s inside or how well they filter. Buying from reliable sellers like fridgefilters.com ensures you’re getting a safe, certified product.

  • Replacement policies – Certain brands, such as Tier1 Plus, offer a Boil Order return policy to customers. This added protection means you can replace your filter with confidence after an advisory.

Here are three excellent Tier1 Plus options available now:

Replacement reminder: Swap out your fridge filter every 300 gallons or every 6 months, whichever comes first, to maintain safe and refreshing water.

The Bottom Line

So, is filtered fridge water safe during a boil order? No. Refrigerator filters are not designed to kill bacteria or viruses that may contaminate water supplies. During a boil order, always boil your water or use bottled water for drinking and cooking.

After the advisory is lifted, flush your system and replace your fridge filter to restore fresh, clean-tasting water.