There are a few things you can do to prevent frosting from happening or at least minimize its occurrence. One is to keep your candles away from drafts.
Blog - Ronxs
Are Wax Melts Safe for Cats and Dogs – The Smelly wax company
Are Candles, Air Fresheners, or Other Scented Products Safe For Pets? 3 Vets Weigh In
Can You Leave A Wax Warmer On All Night?(Safety Advice) - Ronxs
Are Wax Melts Safe for Cats And Dogs?
Using Wax Melts Around Cats & Dogs
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Blog - Ronxs
Title: Ensuring Pet Safety: A Guide to Choosing Wax Melts for a Pet-Friendly Home
Blog - Ronxs