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How can I maximize ice retention in my Bison Hard Cooler?

Chill The Cooler -  Coolers are designed to insulate and keep heat as well as they do cold.  If a cooler is stored in a hot area like a garage or a vehicle prior to use, the insulation will be hot as well and ice melt will occur cooling the 2" thick walls.  Store the cooler inside a day before use or throw in a sacrificial bag of ice to cool the walls quicker. 

Use Cold Contents - Warm contents melt ice quick.  Use chilled contents stored in the refrigerator or freezer to improve ice retention.

Add Quality Ice - Ice quality varies significantly.  Warm ice is kept around 32 degrees and is often wet (common in commercial/restaurant ice makers and ice vending machines).  When purchasing ice at a convenience store, look for solid, dry bags of ice located at the back of the bin.   Block ice, Chillin’ Brew Ice Packs or dry ice will also significantly improve ice retention.

Top It Off  - This is the most important step of all and it's the easiest.  More ice = longer ice retention.  Maintain a 2:1 ice-to-drink ratio and top off the entire cooler with ice when possible.  Ice is colder than air so minimize the amount of air in your cooler and replace it with ice.   When ice melts, do not drain the water.   Cold water is cooler than air and will lead to longer ice retention.  Don't skimp on ice. 

Keep It Cool - Keep the lid closed as often as possible.  Every time a cooler is opened, cold air is exchanged for hot air.   Keep the cooler in the shade to improve ice retention.  The cooler the environment, the better ice retention.  


How can I maximize ice retention in my Bison SoftPak Cooler?

Use Plenty of Ice - Do not overfill the the SoftPak with drinks and not leave enough room for ice.  Use 5 lbs. in the 12-Can SoftPak and 10 lbs. in the 24-Can SoftPak.  

Keep The Sides Buckled- This is paramount to maximizing ice retention and small gaps underneath the ends of the zipper can allow cold air to escape.  When securely buckled, the cold air is trapped in.  


How do I get replacement parts?

You paid good money for your cooler so we’re going to take great care of you. If you should ever need a replacement part for your Bison Cooler please visit our Warranty Page and we will ship it to you free of charge.


What kind of warranty does Bison Cooler provide?

Please visit our Warranty Page for all details related to our Warranty Program.  In short, Bison offers the most robust warranty on the market.  Our competitors advertise "lifetime warranties" that excludes anything that can go wrong with a cooler including latches, drain plugs, gaskets, handles, rubber feet and more.  All of these items are covered by the Bison Warranty.  


How long will a Bison Cooler keep ice?

Ice retention is difficult to put in numbers due to the many variables that effect it. That being said, we have been able to achieve over a week of ice retention in our testing and have reported 10+ days of ice retention.


What is Roto-molding?

Rotational molding (roto) is an industrial production process used to create seamless hollow products. The hollow molds are filled with raw plastic material then heated and slowly rotated along two axis. This constant rotation allows the softened material to evenly disperse through the mold. The process allows for even heavy wall thickness and beefed up corners to handle extra abuse.


Can I lock up a Bison Cooler?

Absolutely, our heavy integrated handles double as secure locking point for a chain, cable or Steelcore Security Strap. This method still allows the user to open and close the lid freely. Our dual integrated lock ports also allow the user to secure their contents if necessary. 


What size Bison Cooler do you recommend?

All of our coolers are true to size meaning that you receive the full stated capacity unlike some of our competitors. Our 50 quart Bison Cooler makes the perfect companion for tailgating or quick getaways while the 150 quart is geared more for extended trips. Regardless of what size works best for you they all offer the same extreme durability and performance you should expect.


Does Bison Coolers offer any discounts for military and law enforcement?

Bison Coolers is thankful for the selfless service offered by our military, firefighters and police officers. As a token of our appreciation we offer a 15% discount on all Bison Coolers products with proof of active service. To qualify, please provide proof of military status, current employment or a .mil e-mail address. Please contact us at 855-278-8355 or e-mail us at to order.