Hi there. Here is my mom's recipe for cleaning narrow neck bottles. 1. Fill the bottle with hot soapy water and let it sit for a bit. 2. Take the shells from 3 eggs and smash them up. 3. Dump the soak water.4. Put in your smashed-up eggs shells, and add a bit of water and soap, then shake the dickens out of it.
It works great for dead plant matter, maybe it'll work for crusty chemistry. Then again...maybe not. :) On 1/11/12 11:46 AM, Tim Daneliuk wrote:
Someone gave me several nice old Kodak brown glass bottles. One of them was crudded up beyond use, but the others are almost usable. I say "almost" because there is some residue on the inside that will not come off with repeated hot water/soap/rise cycles. (I believe they may once have held D-76.) The bottle opening is, perhaps about 20mm but the bottle diameter is probably around 80mm. This means it's kind of difficult to get into the bottle to scrub it out in any reasonable manner. Any ideas out there of how to get the residue out of these bottles or should I just toss them into the garbage?
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