Compositing old coffee grounds


Joined
Feb 9, 2018
Messages
2
Reaction score
2
Country
Greece
Hello everyone! So a friend of mine has been collecting used coffee grounds in tins for months.She couldn't use them after all so she offered them to me to compost.Can I though? The coffee grounds are moldy and the tins they are in are all rusty. The tins have airtight lid on them. What do you guys think?
 
Ad

Advertisements

Joined
Jan 30, 2018
Messages
282
Reaction score
379
Location
Oregon
Hardiness Zone
8
Country
United States
It’s totally fine. In fact my compost and worm bins regularly get moldy areas. I wouldn’t remove it unless it got massive and started smelling putrid. And in almost all cases, if I’m in doubt I add some brown matter. Old leaves from fall are like magic.

I would mix the coffee grounds in with other materials in order to spread around the nitrogen and speed the process. My worms love coffee grounds.
 
Joined
Apr 19, 2015
Messages
1,984
Reaction score
1,882
Location
Emerald Victoria
Hardiness Zone
10a
Country
Australia
I think compost has to go through a stage of smelling putrid:mad:. My son had a cafe for a few years and I loved the coffee grinds for compost and garden so make the most of it;)
 
Joined
Mar 26, 2018
Messages
32
Reaction score
25
Hardiness Zone
9
Country
United Kingdom
I use coffee grounds as a slug detterant. I collect bag fulls from Waitrose for free. I then genorously sprinkle them- smells lovely.
 
  • Like
Reactions: alp
Ad

Advertisements

Joined
Mar 2, 2019
Messages
54
Reaction score
68
Country
United States
Excellent soil amendment especially for acid soil loving plants such as Azaleas, Blueberries & Rhody's
 
  • Like
Reactions: alp

G.W

Joined
Feb 16, 2019
Messages
17
Reaction score
9
Country
United States
Hello everyone! So a friend of mine has been collecting used coffee grounds in tins for months.She couldn't use them after all so she offered them to me to compost.Can I though? The coffee grounds are moldy and the tins they are in are all rusty. The tins have airtight lid on them. What do you guys think?
Hey Christiner.....Make sure you do your research. Coffee grounds can cause some intense results. It can change the PH of your soil, it can reduce competition from surrounding plans and suppress their growth. I have also read that on tomatoes it can cause the stems to rot at soil line. So some may be helpful in compost but be careful.........There are pros and cons but I think the cons win in this situation. GW
 
Joined
Mar 30, 2019
Messages
12
Reaction score
5
Country
United States
Suggest (as mentioned in prior postings) keeping them clear of plant stems, as well as new seedlings.
 
Ad

Advertisements

Joined
Mar 26, 2013
Messages
2,716
Reaction score
1,141
Location
Cheshire
Country
United Kingdom
Unless you are happy with a smell stronger that the worst nettle tea, which will catch your throat and make you feel nauseus, don't touch coffee grinds with a 9ft bargepole.
 

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question

Top