How to Keep Sous Vide Bags Submerged: The Ultimate Guide
Hey there! If you‘re new to sous vide cooking, you may have struggled with keeping your bags fully underwater. It can be frustrating when they float up and leave sections of food exposed. Not to worry – I‘m here to share all my sous vide submersion secrets!
I‘ve been cooking sous vide for over 5 years now, and have tested every trick for weighing down bags. As a home renovation pro, I‘m also pretty handy at engineering solutions with the tools I have on hand. In this guide, I‘ll break down the methods that work every time.
Why Submerging Bags Matters
Let‘s start with why you absolutely need to keep bags fully underwater. If any part of the bag is floating above the bath, here‘s the bad stuff that can happen:
Uneven Cooking
Any food not submerged will cook more slowly or not at all. One chunk of your steak could be perfect medium rare while another is still raw in the center. No bueno!
Longer Cook Times
Since the heat has to pass through more liquid to penetrate floating sections, it takes longer for the temperature to fully distribute. Your time estimates will be off.
Safety Issues
Sections of food exposed to air instead of water may not reach safe bacteria-killing temperatures. The FDA recommends sous vide food reach at least 130°F internally.
Weird Textures
Some parts will get firmer or softer than others. You could have a piece of salmon that‘s tender on top but oddly dense on the bottom.
Simply put, improper submersion leads to big time cooking inconsistencies. Let‘s get your bags underwater where they belong!
Getting Air Out of Bags
Before weighting your bags, be sure to remove as much air as possible during sealing. Air pockets make bags more buoyant and likely to float.
Use a Vacuum Sealer
These electric appliances suck nearly all the air out of your bag using suction power. I use this affordable Foodsaver model which retails for $150.
Water Displacement Method
Slowly lower your sealed bag into a tub of water, letting the pressure push air upward and out of the still unsealed top. Then seal just above water line.
Suck Out Air with a Straw
Simply insert a straw before fully closing your bag to manually suck out excess air pockets.
Lower Into Bath
As you gently lower your sealed bag into the preheated water bath, the pressure will force any remaining bubbles to the top.
Less air in your bags equals better sous vide outcomes! Now let‘s look at keeping bags down below the water.
Weighting Sous Vide Bags
Adding weight directly on top of your bag is a straightforward way to keep it submerged. The goal is to make the bag heavy enough that it sinks.
Sous Vide Weights
You can buy special metal weights with holes designed to grip sous vide bags. They often clip onto the sides of containers. I use these inexpensive $7 weights.
DIY Weights
Around the house items like jars of water, plates, utensils, or clean rocks can also work. I like to use smooth stones from my garden. Just seal items in their own bag.
Aim for 1-2 pounds per bag. Position the weight directly on top of any floating portion. Check and adjust periodically as needed.
Using a Sous Vide Rack
Specialty racks hold your bag below the water line during cooking. They attach to the bottom of your container and have prongs or clips to secure the bags.
I love this rack I found on Amazon for $20 that works perfectly in my 12 quart rubbermaid container.
Racks provide an easy, hands-off way to keep your bags submerged and in place during extended cooking times.
Maintaining Proper Water Levels
No matter what weighting method you use, having adequate water in your bath is key.
Fill Level
This prevents any portions from accidentally getting exposed.
Check Evaporation
Especially during longer cooks, water can evaporate surprisingly fast.
Maintaining ample headspace keeps circulation optimal so your bags stay submerged.
Troubleshooting Floating Bags
Sometimes pesky air bubbles cause bags to rise or shift position while cooking. Don‘t flip out – we can tackle this!
If you notice a bag surfacing, try these quick fixes:
- Add more weights directly on top of the floating portion.
- Reposition the bag so seams are on top – they often trap air bubbles.
- Gently flip bag upside down to redistribute any trapped air.
- Add more water to fully submerge the stubborn section.
With a little experimenting, you‘ll dial in a custom setup that gets your bags underwater and cooking evenly.
Specialized Sous Vide Containers
While regular pots work, specialized sous vide vessels make submersion easy.
Benefits include:
- Integrated rack systems to secure bags
- Insulated walls maintain bath temp
- Rounded corners for better circulation
- Locking lids to minimize evaporation
I use this 16 quart Lipavi container which sells for $170. The quality is amazing and it‘s so easy to use. Worth the investment in my book!
Using a Beer Cooler
An insulated beer or drink cooler can also create a DIY sous vide bath.
Look for key features like:
- Sturdy insulated walls to maintain temperature
- Large enough capacity for your bags
- Flat bottom profile for even heating
I sometimes use this 70 quart Igloo model which sells on Amazon for under $40. It holds temperature incredibly well during longer cooks.
The key is finding a cooler where your bags reliably stay underwater. Test it out before a long cook.
Documenting Your Process
Once you perfect your own sous vide submersion method, take notes!
Snap photos of your working setup. Record details like:
- Where/how many weights you used
- How bags were positioned
- Any equipment like racks
- Water fill level
Refer back to your notes next time for guaranteed success. Dialing in that process is gratifying – no more floating bags ruining the fun!
Let‘s Review Sous Vide Submersion Tips
To recap, here are my top tips for keeping bags underwater:
- Properly seal bags removing as much air as possible
- Use weights and racks to hold bags down
- Maintain 2-3 inches of water above bags
- Check water level and re-weight bags periodically
- Specialized equipment simplifies submersion
- Document setups that work to replicate next time
I hope these tricks help you master submerged sous vide cooking. No more uneven weirdness or safety issues – just perfect results every time. Let me know if any other bag issues pop up – I love troubleshooting sous vide!
