How to Properly Care for Your Soft Flask - Orange Mud, LLC

How to Properly Care for Your Soft Flask

When it comes to outdoor adventures, a reliable soft flask is your trusted companion for staying hydrated. These flexible, convenient containers are designed to provide a continuous supply of water on the go. However, like any piece of gear, soft flasks have a limited lifespan. Let’s explore the factors that influence how often you should consider replacing your soft flask while taking good care of it.

Understanding Your Soft Flask

Before diving into the replacement intervals, let's familiarize ourselves with the features and specifications of a typical soft flask. This knowledge will help you understand how soft flasks work and what contributes to their longevity.


  • BODY CONFORMING SOFT FLASK: Soft flasks are crafted from a super-soft material that readily conforms to the shape of any pocket or hydration vest. This design ensures a snug fit and minimal water sloshing during your activities.
  • ANTI-SLOSH: Soft flasks are engineered to shrink as you drink, reducing water sloshing and maintaining your comfort during your adventures.
  • VERSATILE DESIGN: Many soft flasks can be used with or without a tube. You also have the option to mount a bite valve directly to the cap for added convenience.
  • FULL SIZE ICE CUBE FRIENDLY: The sport cap, typically 42mm in size, features a silicone bite valve that allows you to add ice cubes easily. Moreover, soft flasks can handle freezing or carrying warm beverages up to 140°F (60°C).
  • DURABLE CONSTRUCTION: Soft flasks are designed to withstand the rigors of outdoor activities and often come with a No-Leak™ Guarantee for added reliability.


  • CAPACITY: A standard soft flask typically holds around 500ml (17oz) of liquid.
  • WEIGHT: The average weight of a soft flask is about 1.4 oz (40g).
  • DIMENSIONS: Soft flasks usually have dimensions of approximately 7.25 x 2.6 inches (20.96cm x 6.6cm).
  • MATERIAL: Soft flasks are commonly made from 0.25mm TPU (Thermoplastic Polyurethane), HDPE (High-Density Polyethylene), and are 100% BPA and PVC-free, ensuring your beverages stay uncontaminated.

Care Instructions:

Proper maintenance plays a significant role in extending the lifespan of your soft flask. To keep it in optimal condition:

  • Rinse your soft flask before the first use.
  • Soft flasks are usually dishwasher safe, preferably on the top rack.
  • If you need to clean the hose, pull it off the cap while being careful not to lose the plug that holds it in place.
  • Let it air dry thoroughly between each use.

By following these care instructions and understanding the features and specifications of your soft flask, you can ensure its longevity. However, certain signs will indicate when it's time to consider a replacement.

Signs It's Time to Replace Your Soft Flask:

  • Visible Wear and Tear: Check for punctures, or cracks, in the flask's body or cap. If you spot any damage, it's time to replace it.
  • Change in Taste or Odor: If your soft flask retains a strange taste or odor even after thorough cleaning, it's best to get a new one.
  • Mold Growth: Mold or mildew in the flask is a clear sign for replacement. Soft flasks should always be kept clean and free from mold and the best way to do this is to hang it upside down to dry and air out.. 
  • Deformed Shape: Over time, soft flasks may lose their shape-conforming ability. If your flask no longer fits properly in your gear or pocket, it's time to replace it.
  • Leaking: If your soft flask leaks when you drink, even after checking for loose parts and proper sealing, it's a definite indication that it needs replacement.

While soft flasks are durable and designed for long-term use, they are are not indestructible. Regular inspection and proper care are essential to ensure they stay in good condition. By following these guidelines and recognizing the signs that it's time for a replacement, you can continue to enjoy reliable hydration during your outdoor pursuits. If you're looking for a high-quality soft flask, consider the Ultraflask by Orange Mud to accompany you on your adventures.