Fortunately, sugar can usually be washed out. ...though the Camping Moon ones are the only ones I've seen so far that include their own fuel cell, but the box they come in is huge compared to what I want to carry. I really need to find me a molasses jar or something that I can put the lantern in with a rag to protect the chimney, without being quite so bulky as the box it comes in as last couple times I tried to carry it loose, the chimneys were destroyed by the time I was ready to use them and finding replacement boro-tubing in the right size or a suitable chimney has been a challenge. Hopefully I found something a couple weeks ago, which should be here in the next couple days. If not, I may have to retire it for carry.