Profit taking after recent gains helped send canola to heavy losses on Friday.
Additional pressure came from continued strength in the Canadian dollar, which reduces the value of Canadian canola in domestic currency terms and can make exports less competitive. The loonie had reached its strongest level in nearly three months on Thursday, helped by rising crude oil prices and optimism surrounding Canada-U.S. trade talks.
Losses in canola came despite firmer crude oil on Friday, with energy markets supported by renewed U.S.-Iran tensions and continued restrictions on traffic through the Strait of Hormuz.
November fell $21.30 to $799.10, and January fell $20.50 to $808.40.