DSF

I read somewhere on this forum to cool down mugs by water or fan, i done one yesterday and it cracked when in the water which don't surprise me, why do you need to cool them down.

I spent months religiously cooling my mugs in warm water (so they didn't crack). Turns out you don't need to cool them, unless you need to package them up quickly, lol.

They WILL hurt if you pick up a hot one I suppose

I use a fan.. have never 'dunked'

CarArtz Dave;55541 wrote:I spent months religiously cooling my mugs in warm water (so they didn't crack). Turns out you don't need to cool them, unless you need to package them up quickly, lol.

Not so really.

This has been discussed many times before - try typing in 'dunking mugs' in the search box...

bms;55544 wrote:Not so really.

This has been discussed many times before - try typing in 'dunking mugs' in the search box...

Thats why i did not find it in the search i put cooling mugs.

The reason for cooling the mugs is to drop the temperature of the mug below the temperature at which the dye sublimates to stop the dye on the mug migrating under the heat. So really even boiling water is cool enough to stop that from occuring. However I have never seen any of my items migrate to an extent that I have noticed and it does not take a mug out of a press long to cool anyway. I am sure more mugs are rendered useless through thermal shock than through dye migration.

I know we've discussed this before but I'll add my opinion to this thread anyway. I've always dunked in room temp water as I have noticed a slight bleed when I've run tests on mugs left to air cool. I know some members get good results from fan cooling but this isn't something I've tried yet.

It probably depends on the usual factors, ink type, mug type, air temp etc. Print a couple and dunk one, air cool the other and then compare

Always dunked in warm water, originally because of ink migration, but also to stop accidentally brushing against a hot mug.

gorgall2;55551 wrote:Always dunked in warm water, originally because of ink migration, but also to stop accidentally brushing against a hot mug.

I always try to cool mine down using a fan as I am always brushing my arm or hand against my mugs by accident and a hot one hurts!

Hi there

I have never used any cooling method, mugs are normally ready to be packed within 15 minutes max if left alone.