September London cocoa slipped 0.1% to 1,609 pounds per tonne.
July raw sugar rose 1.9% to 17.70 cents per lb, having settled down 1.9% on Monday.
July arabica coffee rose 0.3% to $1.6055 per lb, having settled down 1.5% on Monday, extending its retreat from last week's 4-1/2-year high of $1.6675.