This one of my better but simple ideas
My intension is to use it with an exhaust fan fitted to the bottom of the 20lt bucket
But I cant see any limitations to it been used just as it is with fan blowing from above and no bucket as long as it is raised off the ground to allow air flow to pass through
Inserts for 20lt food buckets
I used Nilex round plastic basins with handgrips but $2 Dollar shops may be cheaper for similar basins
It fits to perfection inside the 20lt food bucket to act as a guide for most cooling devices or fit a screen to make it a flat bottom cooling colander in its own right
I have cut the centre of the bottom of these basins leaving a 20mm lip left on the inner edge
The ring handle fits firmly over the buckets lid edge to form a good seal but can still be easily removed on and off if required.
The lip that’s left on the inner edge after the centre has been cut out is to accommodate several cooling implements from colanders and steamer inserts to fitting a purpose made screen
The main reason I chose this is
Flat surface to cool the roasted beans fast (as opposed to a concentrated mass of beans)
Cheap to buy
Easy to make
Now for some pictures
From left to right Drawing of set up, basin with centre cut out, basin outer



With steamer insert view from above, view from below, how a colander fits (Note colander fits better without handles)



Koffee Kosmo
My intension is to use it with an exhaust fan fitted to the bottom of the 20lt bucket
But I cant see any limitations to it been used just as it is with fan blowing from above and no bucket as long as it is raised off the ground to allow air flow to pass through
Inserts for 20lt food buckets
I used Nilex round plastic basins with handgrips but $2 Dollar shops may be cheaper for similar basins
It fits to perfection inside the 20lt food bucket to act as a guide for most cooling devices or fit a screen to make it a flat bottom cooling colander in its own right
I have cut the centre of the bottom of these basins leaving a 20mm lip left on the inner edge
The ring handle fits firmly over the buckets lid edge to form a good seal but can still be easily removed on and off if required.
The lip that’s left on the inner edge after the centre has been cut out is to accommodate several cooling implements from colanders and steamer inserts to fitting a purpose made screen
The main reason I chose this is
Flat surface to cool the roasted beans fast (as opposed to a concentrated mass of beans)
Cheap to buy
Easy to make
Now for some pictures
From left to right Drawing of set up, basin with centre cut out, basin outer



With steamer insert view from above, view from below, how a colander fits (Note colander fits better without handles)



Koffee Kosmo





















.yeah as the other posts have said ,, camping stores are the go , I picked up two for $40 the other was nested inside the one I used , but had a bigger mesh size , I thought the smaller mesh size would give more cooling effect (like metal to bean ) but I will try the other one and keep everyone posted , and take a few pics as well , Cheers Gaz, ps look forward to the posts KK
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