Justin_F
Member
Hey, I wonder if you can give some help - its my first time casting coffee beans. Basically I am using a 6" copper tube (1" diameter) with a stopper at one end. Tonight I measured the amount of PR that I would need by loading the pipe with beans and measuring the amount of water it took to fill to the top. I know that beans float so I held a finger over the top to make sure I didn't displace the beans. Anyhow what I ended up with was 30ml (1 oz) of water and about 60ml (2 oz) of coffee beans making the actual volume of the tube something like 90ml (3 oz). My question is: Is there enough PR in the tube to fix the beans and turn the resulting cast successfully? I hadn't really thought this through or seen any posts re the ratio of PR to a solid when casting but it really took me by surprise that there should be so "little" PR needed. Anyway I might be concerned over nothing but thought it worth seeing if anyone had an opinion. I've attached a photo of the tube, stopper and the volume of beans spread in a single layer on my kitchen counter top.
Cheers
Juz
Cheers
Juz