Deback- will you just "take one for the team" and try the oven drying thing already lol??? I took one when I tried to boil them on the stove, now c'mon
lol - Yea, I know I could give it a try, but sometimes I just won't stray from common sense, especially when something makes no sense at all.
I can tell you, tho, that I'll NEVER soak cartos in tap water again (or any other liquid, including isopropyl alcohol, vinegar, pure grain alcohol, etc). After letting several cartos soak in tap water all afternoon and all night, flushing out all the excess water, and letting them dry thoroughly in front of a fan (about two weeks ago), they now have that funky taste of minerals from tap water.
However, when I've quickly flushed out old juice using the syringe and rubber cone, I didn't get any funky taste, and those cartos worked fine.
Also, yesterday, I was getting a rubbing alcohol taste and discovered there was residue inside the drip tip I was using from soaking it in rubbing alcohol for a few minutes a few days earlier. Yup, after using a q-tip to remove the alcohol residue, that taste was gone. This particular drip tip is the type that a q-tip won't go all the way through, so I guess I never swiped the inside of that particular drip tip after soaking it in IA.
So, what have we learned?
1. Don't boil cartos. Shrinks the fillers by at least 33% and might not work again.
2. Don't soak cartos in tap water. Leaves a funky mineral taste and might not work again.
3. If you must clean a carto (like to remove old or bad-tasting juice), just flush it out quickly using tap water and dry by a fan for about 3 days.
4. It's best to refill cartos for about a month and then discard them. That's if you refill each carto once a day. So, refill them about 30 times, if they don't get clogged or die before then. If you're only refilling and rotating two cartos each day, they should last for two weeks and possibly longer.
5. Don't buy distilled water, isopropyl alcohol, white vinegar, or pure grain alcohol to clean cartos. Cartos are only $1.59 each. It's not worth spending too much time or spending money on cleaning liquids to clean cartos.
6. Allow flushed-out cartos to dry for more than overnight. It takes about 3 days for the filler inside to dry completely, if the excess water has been flushed out using a syringe and rubber cone. The filler is rolled up inside the carto and is fairly tight, so it will still be damp after two days sitting in front of a fan. And if you only blew out the excess water and didn't flush out the excess water, it will take longer than 3 days for the filler to dry completely.
7. If you want to ignore common sense and risk ruining the carto, you can use an oven (set at low heat) or a dryer (inside a sock, scratching other cartos that are inside the same sock).
8. Clean drip tips (those with smaller holes) with hot water only, or if soaked in IA, swipe out the inside with a q-tip. Isopropyl alcohol can leave a funky-tasting residue inside that will remain there until it's wiped out with a q-tip.
Did I leave out anything?