The Warming Bottle is a gadget that can be used to temporarily create a fake Warming Seelie at the spot where it is used. It lasts 5 seconds, long enough to completely remove Sheer Cold, so long as the player stays at the spot. Note: the item will be consumed upon usage.
The blueprint for Warming Bottle is obtained by raising the Frostbearing Tree Offering to Level 4.
Generally, because sources of warmth are relatively common to find in Dragonspine, Warming Bottles are considered less useful than the food item Goulash, which reduces the speed at which Sheer Cold accumulates.