To clarify by this we mean you know a proper old fashioned natural cork, not the plastic ones obviously. Well the answer is yes because cork is just a type of bark from a tree and so it will ultimately rot down too. Although we would caution composting alot of them because they will take an incredibly long time to break down, corks are used because they are naturally impermeable - which makes it perfect for plugging a bottle of vino but makes composting a bit tricky. Chopping the cork up a bit (tricky as this may be) will speed up the decomposition a little but overall in small amounts you can add them in and they do rot eventually and are (eventually) a valuable addition to the finished compost.
This is the newsletter of the Shropshire Master Composters. We are a group of volunteers who live around Shropshire, Telford and Wrekin and we help to educate people about home composting and reducing waste.
Saturday, 7 September 2013
Can I compost cork?
Sometimes when we are out promoting composting with Shropshire Master Composters we get asked can I compost the cork from a wine bottle?

To clarify by this we mean you know a proper old fashioned natural cork, not the plastic ones obviously. Well the answer is yes because cork is just a type of bark from a tree and so it will ultimately rot down too. Although we would caution composting alot of them because they will take an incredibly long time to break down, corks are used because they are naturally impermeable - which makes it perfect for plugging a bottle of vino but makes composting a bit tricky. Chopping the cork up a bit (tricky as this may be) will speed up the decomposition a little but overall in small amounts you can add them in and they do rot eventually and are (eventually) a valuable addition to the finished compost.
To clarify by this we mean you know a proper old fashioned natural cork, not the plastic ones obviously. Well the answer is yes because cork is just a type of bark from a tree and so it will ultimately rot down too. Although we would caution composting alot of them because they will take an incredibly long time to break down, corks are used because they are naturally impermeable - which makes it perfect for plugging a bottle of vino but makes composting a bit tricky. Chopping the cork up a bit (tricky as this may be) will speed up the decomposition a little but overall in small amounts you can add them in and they do rot eventually and are (eventually) a valuable addition to the finished compost.
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