The blog The Squishly Blog
Practical guides to your collapsible water bottle — keeping it clean and fresh, making it last, getting it through airport security, and getting the most out of it on the road and the trail. Short, tested, and to the point.
September 3, 2026
Can You Put Hot Water in a Collapsible Bottle? Heat, Freezing and the Limits of Silicone
Food-grade silicone tolerates far more heat than any drink reaches. What limits a collapsible bottle is the single wall, the gasket and the fold — plus how to freeze it, wash it, and keep it out of a summer car.
August 20, 2026
Are Collapsible Water Bottles TSA Approved? Airport Rules Explained
No bottle is “TSA approved” — and none needs to be. What the liquids rule actually says, why an empty bottle of any size passes the checkpoint, and where a collapsible one fits in.
August 11, 2026
How Long Does a Collapsible Water Bottle Last (and What Wears First)
The accordion body sets the clock, not the cap. What wears, the three signs it is aging, and the quarter-turn folding habit that keeps the ribs springing back for years.
August 7, 2026
The Best Water Bottle for Travel: The Numbers That Matter
Folded height, diameter and the weight of the water — the three measurements that decide whether a bottle has a home in your bag, and how to check them before you pack.
August 6, 2026
How to Clean a Water Bottle (Any Material)
The 30-second daily rinse, a weekly wash with the lid in pieces, the right soak for a smell or a chalky film, and what changes for steel, plastic, glass and silicone.
July 27, 2026
Why Collapsible Water Bottles Leak (and How to Stop It)
A cap that went on crooked, residue on the threads, folding one that still holds water, pressure in a packed bag: the four real causes, and the fix for each.
July 19, 2026
How to Clean a Collapsible Water Bottle
A 30-second daily rinse, a deep clean that reaches the folds, and how to clear odor or mildew with baking soda or vinegar — plus the drying step people skip.
July 19, 2026
The Best Collapsible Water Bottle for Travel & Hiking
Through airport security empty, packed flat, clipped to a daypack, and refilled at fountains on the go — how to travel and hike with a collapsible bottle.