My friend was throwing away a demijohn because it was sitting

>>1239707
Add sand, water, and dishsoap then shake it.

>>1239707
I love that shape.

You can use vinegar. Fill it up, forget it for a month. Use it after cleaning with normal elbow grease. I have tons of carboys and demijohns. I got a lot of old bottles left out in the forest at a dump dated around 1920-1950. I've had to buy aluminum rods from the local hardware store and make my own tools that can fit inside them for easy cleaning. Mineral build up had to be cleaned with a weak acid.

>>1239707
Ball bearings, sand, laundry powder.

>>1239707
A bunch of small hard things
A lubricant
And a solvent or soap.

And if nothing else has worked- dilute hydrochloric acid will murder anything dirt or calcium deposit you can think of

Cool bottle though

>>1239707
Use OxiClean or other cleaning powder that has high Sodium Percarbonate content. Simply add the detergent, fill up the carboy with warm water, then wait an hour or two and you're done.

>>1239707
Ditto most of the comments here. An abrasive, water, and vigorous shaking. Personally I'd use walnut shells as the abrasive.

Muriatic acid would also be an option. Diluted of course.

get strong magnet, wrap in sponge, insert in bottle, use other magnet outside bottle to scrub it.

Source: Sommelier for 7 years, cleaning out wine decanters can be a biiiitch

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>>1239845
>Sommelier for 7 years
>spit top tier wines
i despise your kin

Ever make a dope pipe out of a lightbulb? Same thing.

Salt and alcohol work well for cleaning a bong.

>>1239714
this

just add something to scrub it off like sand or rough salt, some soap or cleaner and water, then shake it

cleaned multiple already with crusted cider leftovers

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>>1239707
Maybe this thing that showed up in the image search?
http://www.ebay.co.uk/itm/Cleaning-Brush-for-Carboy-Demijohn-or-Beer-Wine-Bottle-Cleaner-for-Drill-CHOICE-/390841720010

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>>1239851
>getting drunk on the job
Degenerate. I hate your kind.

>>1239707
Sand or salt + ice cubes, it works for crusty coffee pots and its not a chemical.

>>1240241
>crystalline H20
>crystalline NaCl
>not chemicals

>>1240038
>Degenerate
>>>/pol/ is this way, my white good christian friend

vinegar and rice.

>>1239707
salt and rubbing alcohol, then shake

>>1240494
>>>/lgbt/ is this way, my degenerate friend

>>1240754
>>>/x/ is this way, my projecting fellow

>>1240754
>>1240826
>>>/GTFO/ is that way, you arguing faggots

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>>1239921
This, and pic related.

>>1240826
>>>/out/ is this way, my wrongly neighboored buddy

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>>1239707
Get a carboy scrubber. Abrasive as fuck and you can bend it exactly to your needs. This, some hot water and dish soap.

>>1241056
>>>/ur-mom/ is my way, son

>>1240494
>>1240754
>>1240826
>>1241056
>>1241656
All of you please cease posting immediately. Thank you

You could try this
https://youtu.be/embnVqT-Q9Q?t=2m1s

>Not using a wire and rice with soap to whip it from the inside with a drill.

>>1239707
piranha solution

rock salt and rubbing alcohol ftw