If you own a Keurig 2.0 coffee maker, you know how easy it is to brew a cup of coffee in minutes. But what happens when you need to move, store, or clean your machine? Many Keurig 2.0 owners are surprised to learn that there’s an internal water tank that can hold water even after you empty the external reservoir. Leaving water inside can lead to mold, stale taste, or even damage if the machine is stored in a cold place. Emptying the internal tank is a key part of proper maintenance, but the process isn’t obvious—even if you’ve read the manual. Here you’ll find a complete, step-by-step guide on how to empty the Keurig 2.0 internal tank, plus tips, troubleshooting advice, and essential safety information. Whether you’re getting ready for a move, long-term storage, or just deep cleaning, this guide will help you do it right.
Understanding The Keurig 2.0 Internal Tank
Many coffee lovers don’t realize that the Keurig 2.0 is built with two water tanks: the external reservoir that you fill and see every day, and an internal hot water tank that stays hidden inside the machine. This internal tank holds water that’s heated and ready for brewing. It’s great for fast coffee, but it means water can remain inside even when the machine looks empty.
Why does this matter? Stale water can cause:
- Bacteria and mold growth
- Bad odors or taste
- Machine damage during freezing
- Mineral buildup
The Keurig 2. 0 doesn’t have a simple “drain” button. You need to follow a few steps to remove this hidden water safely. Most users only discover this when they see water leaking during transport, or after their coffee tastes strange.
Understanding the internal tank is the first step to keeping your coffee fresh and your machine working for years.
When Should You Empty The Internal Tank?
There are several times when you should empty your Keurig 2. 0’s internal tank. Waiting too long can cause avoidable problems.
- Before Moving: If you’re relocating your machine, always empty the internal tank first. Even a short car ride can spill water into the machine’s electronics.
- Before Storage: If you won’t use your Keurig for more than a week, empty the tank to avoid mold or stale water.
- Before Shipping: Manufacturers recommend draining the tank before mailing the machine for repairs or warranty service.
- If You Notice Strange Taste: Stale water can affect your coffee flavor. If your coffee tastes odd, check for old water.
- Before Cleaning with Vinegar: For deep cleaning or descaling, start with an empty tank to avoid mixing old water and cleaning solution.
Tools And Materials You Will Need
Emptying the Keurig 2. 0 internal tank isn’t complicated, but having the right items nearby makes the process smoother.
- A large mug or container (to catch water)
- Clean towels or paper towels (for spills)
- Small flat-head screwdriver (optional for reset)
- Descaling solution or white vinegar (if cleaning)
- User manual (helpful for troubleshooting, not required)
Keep these items within reach before you start. Some steps may cause water to spill, so working near a sink or on a towel is wise.
Step-by-step Guide: How To Empty Keurig 2.0 Internal Tank
Ready to get started? Follow these clear steps to safely remove water from your Keurig 2. 0’s internal tank. These instructions work for most Keurig 2. 0 models, including K200, K300, K400, and K500 series.
1. Turn Off And Unplug Your Keurig
Safety first. Always turn off your Keurig and unplug it from the wall. Water and electricity never mix. Wait a few minutes for the machine to cool if you just brewed coffee.
2. Remove The External Water Reservoir
Lift off the external water reservoir. Set it aside. Wipe up any drips or spills you see.
3. Open And Close The K-cup Holder
With the reservoir removed, open the K-Cup holder (where you put the coffee pod) and then close it again. This tells the machine you’re ready to brew, even though there’s no water in the reservoir.
4. Place A Large Mug On The Drip Tray
Put a large mug or bowl on the drip tray. The internal tank will empty into this mug.
5. Start A Brew Cycle Without A K-cup
Turn your Keurig back on. Select the largest cup size available (usually 10 or 12 oz). Press the “brew” button. The machine will try to brew using water from the internal tank. Since there’s no K-Cup, only water will come out.
6. Repeat Brew Cycles Until “add Water” Message Appears
After the first brew, the machine may allow you to start another cycle. Each time, more water leaves the internal tank. Continue starting new brew cycles (without K-Cups) until the screen displays “Add Water” or “Prime.” This means the internal tank is empty.
7. Drain Remaining Water (if Any)
Some models may still have a small amount of water inside. To remove every drop:
- Tilt the machine gently forward over the sink to let extra water drain out of the bottom.
- For stubborn water, gently shake the machine (not too hard) while it’s upside down over a towel or sink.
8. Dry And Reassemble
Wipe any drips or spills. Place the external water reservoir back on the machine if you plan to use it again soon. If storing, leave the reservoir off and store parts separately.
Alternative Method: Keurig 2.0 Internal Tank Drain Plug (for Advanced Users)
Some Keurig 2.0 models have a hidden drain plug or screw on the bottom or back of the machine. This is not always accessible and is usually for service technicians, but advanced users sometimes use it.
- Unplug the machine.
- Turn it upside down on a towel.
- Look for a small screw or rubber plug marked “drain.”
- Remove the plug and allow water to flow out.
- Replace the plug tightly before use.
Warning: This method can void your warranty and may be tricky. Only try it if you’re confident with small appliances.
Common Mistakes And How To Avoid Them
Even careful users make errors when emptying the Keurig 2.0 internal tank. Here are the most common mistakes:
- Forgetting to Unplug: Always unplug before you start. This avoids shocks and protects the machine.
- Using a K-Cup During Emptying: Never use a coffee pod when draining. You want only water to come out.
- Ignoring the “Add Water” Message: Some think the tank is empty before the message appears. Always run cycles until you see this warning.
- Forcing the Machine: Don’t poke, pry, or force water out with tools. This can damage seals and electronics.
- Skipping Drying Step: Wipe all parts dry, especially before storage, to prevent mold.
Cleaning And Descaling After Draining The Internal Tank
Emptying the internal tank is a great time to give your Keurig 2. 0 a deep clean.
Why Descale?
Over time, minerals in tap water can build up inside your machine. This slows brewing, affects taste, and can shorten the machine’s life. Descaling removes these deposits.
How To Descale
- Mix Descaling Solution: Use a commercial descaling liquid or mix equal parts white vinegar and water.
- Fill the Reservoir: Add the solution to the external water reservoir.
- Run Brew Cycles: With no K-Cup, run several brew cycles, collecting the water in a mug.
- Rinse Well: Repeat brew cycles with plain water until the vinegar smell is gone.
Cleaning Tips
- Wipe the drip tray, K-Cup holder, and external surfaces.
- Clean the needle with a paperclip if you notice slow brewing.
- Don’t forget to dry all parts before reassembling.
Storing Your Keurig 2.0 Safely
If you’re putting your Keurig away for weeks or months, follow these tips after emptying the internal tank:
- Store in a dry, cool place. Avoid attics, garages, or anywhere it might freeze.
- Keep the reservoir and drip tray separate to allow airflow.
- Place a dry paper towel inside the water reservoir to absorb any remaining moisture.
- Cover the machine with a cloth to keep dust out.
Comparing Keurig 2.0 Internal Tank Vs. Other Models
Different Keurig models handle water storage in their own ways. Here’s a quick comparison:
| Model | Internal Water Tank | Drain Method | Ease of Draining |
|---|---|---|---|
| Keurig 2.0 (K200, K300, etc.) | Yes | Brew cycles + possible plug | Moderate |
| Keurig K-Classic | Yes | Brew cycles only | Moderate |
| Keurig K-Mini | No | Reservoir only | Easy |
| Keurig K-Elite | Yes | Brew cycles + possible plug | Moderate |
Keurig 2. 0 models are not the simplest to drain, but with the steps above, you can do it without tools or special skills.
Troubleshooting: If Water Remains In The Tank
Sometimes, even after several brew cycles, you notice water sloshing inside. Here’s what to check:
- Machine Orientation: Make sure you tilt the machine gently forward after draining. Sometimes water gets trapped in corners.
- Blocked Needle: If the exit needle is clogged, less water will drain during a “brew.” Clean it with a paperclip.
- Clogged Lines: Mineral deposits can block water flow. Descale the machine fully.
- Drain Plug Issues: If your model has a drain plug and water doesn’t flow, the plug may be stuck or blocked.
If you can’t empty the tank after trying these steps, contact Keurig support or visit their official website for troubleshooting help.
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Maintenance Schedule For Keurig 2.0
To keep your Keurig 2.0 running well, follow this maintenance routine:
| Task | Frequency | Notes |
|---|---|---|
| Empty Internal Tank | Before storage, moving, or every 3 months | Prevents mold and stale water |
| Descale Machine | Every 3-6 months | Use vinegar or descaling solution |
| Clean Reservoir & Tray | Weekly | Wash with soap and water |
| Clean Needles | Monthly | Use a paperclip |
Sticking to this schedule reduces the risk of breakdowns and keeps coffee tasting fresh.
Expert Tips For A Longer-lasting Keurig 2.0
Beyond just emptying the internal tank, a few smart habits can make your machine last longer:
- Always use filtered water if possible. It reduces mineral buildup.
- Never leave water sitting for more than a few days.
- Don’t force parts—if something is stuck, check for instructions or call support.
- If you live in a hard water area, descale more often.
- Let the machine dry fully before storage.
A common beginner mistake is ignoring the importance of drying. Even a small amount of water left inside can encourage mold, especially if stored in a warm place. If you ever notice a musty smell or slow brewing, repeat the draining and cleaning process.
What To Do If Your Keurig 2.0 Leaks After Draining
If water leaks from the base after you’ve tried to empty the tank, here are possible causes and fixes:
- Loose reservoir: Make sure the reservoir is seated properly.
- Over-tilting: If you tipped the machine too far, water may have entered non-waterproof parts. Let it air dry for 24 hours.
- Damaged seals: Check for cracks or worn seals around the tank and base.
- Internal crack: Rare, but can happen if the machine was dropped or frozen.
In most cases, drying and careful reassembly solve leaks. If leaks continue, contact Keurig customer service.
When To Call For Professional Help
Most users can empty the Keurig 2.0 internal tank at home. However, get professional help if:
- The machine won’t power on after draining.
- Strange noises or smells continue after cleaning.
- The display stays blank or shows error codes.
- You see water inside the electronics.
Attempting advanced repairs or opening the machine can void the warranty. When in doubt, check the manual or reach out to the manufacturer.
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Real-world Examples: Why Draining Matters
Consider these real-life situations:
- A family moved their Keurig 2.0 in winter. They didn’t drain the internal tank. When unpacking, they found water had frozen and cracked the internal heater.
- A college student stored the machine all summer. When returning, the machine smelled musty, and coffee tasted bad—mold had formed inside.
- A coffee lover cleaned the machine regularly but never drained the tank. After two years, the machine stopped brewing and displayed an error code. The problem was mineral buildup in the internal tank.
Draining the internal tank could have prevented all these problems.
The Science Behind Stale Water
Water sitting in a closed, warm environment is a perfect place for bacteria and mold to grow. Even if you can’t see it, microscopic organisms multiply quickly. Some studies show bacteria can double every 20 minutes in warm water. That’s why emptying and drying the tank is so important, especially before storage.
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Tips For First-time Keurig 2.0 Owners
If you’ve just bought your first Keurig 2.0, draining the internal tank might seem intimidating. Here are some beginner-friendly tips:
- Watch a short video demonstration before starting. Visual guides help.
- Don’t rush. Take your time with each step.
- If you spill water, it’s not a disaster—just dry everything before plugging in again.
- Keep your user manual for model-specific advice.
Remember, even experienced users make mistakes. The key is being careful and following the right order.
Why Keurig Doesn’t Include A “drain” Button
Many users wonder why there isn’t a simple “drain” feature. The reason is design complexity and cost. Adding a drain valve would increase price and require extra seals (which can fail). Keurig prefers users to empty the tank through repeated brew cycles—a method that’s safe and uses parts already in the machine.
For more about coffee machine design, you can read about water tank engineering at the Wikipedia Coffee Maker page.
Frequently Asked Questions
How Often Should I Empty My Keurig 2.0 Internal Tank?
You should empty the internal tank before moving, shipping, or storing your machine for more than a week. For routine maintenance, draining every 3 months helps prevent mold and mineral buildup.
Can I Use Soap Or Cleaning Chemicals In The Internal Tank?
No. Only use water, vinegar, or official descaling solutions. Soap or harsh chemicals can leave residue that affects taste and may damage the machine.
My Keurig 2.0 Still Sounds Like There’s Water Inside After Draining. What Should I Do?
Try tilting the machine gently and running a few extra “brew” cycles without a K-Cup. If water remains, check for a drain plug or contact customer service.
Will Draining The Internal Tank Void My Warranty?
No, using the brew cycle method is safe and recommended by Keurig. However, opening the machine or using the hidden drain plug may void the warranty.
Is It Safe To Store My Keurig In The Garage Or Attic?
It’s best to avoid storing your Keurig in places where temperatures can drop below freezing or get very hot. Freezing can crack internal parts, while heat can encourage mold. Store in a cool, dry spot indoors.
Taking care of your Keurig 2. 0 is simple once you understand how the internal tank works. By emptying it properly, you’ll enjoy fresher coffee, a longer-lasting machine, and less hassle in the long run. With these steps, you can handle draining and maintenance confidently—no surprises, just great coffee.