diy biochar in galvanized retort can on 1st burn. can I still use?

[Janxster]

I realized after I made my 1st batch of bio char that the can I used for retort was galvanized. I don't know much about galvanization but do you think the galvanization affected the bio char I know I got up to at least 620 f.
More details:
I filled a 15 gallon can ,with a lid , with oak firewood cut into 3" chunks. I then put a layer of wood on the bottom of my 55 gallon barrel that I placed the retort can upside down on top of that then filled in the sides with wood and then put another 5 in on top. Then did a top down burn with a chimney and lid on top. It seemed to burn OK and I had readings of 630ﾟ at the bottom of the chimney flue. After I removed the can and saw some discolouration I realized that it had been galvanized. Do you think this would be any problem with the end product given the temps that it had reached. The bio char seems to have turned out OK ,it is glass and crystalyn like.

-janx

 

[hecno]

Photo would be good .

 

[Janxster]

pics added. the retort bucket was full of 3x3 in pcs of 2 yrs seasoned oak.

 

[hecno]

The white you are seeing is normal , no problems there , and going by the photo of the char you have done a great job . Here is some I made a while back .

 

[Janxster]

thanks. I am mostly concerned about it being contaminated from the burning off of the galvanizing. do you think the temps got rid of any nasties?

 

[hecno]

I recon the temps you had would do the job , I would not be too concerned about it .

 

[Janxster]

cool. thanks. this batch may go in the outdoor garden. I used red oak only. do you know if it is ok to use allopathic trees? Is there a better type of wood. soft vs hard.