From a letter dated c. April 30, 1885:
āI believe that The Potato Eaters will turn out wellāas you know, the last few days are always tricky with a painting because before itās completely dry one canāt use a large brush without running a real risk of spoiling it. And changes must be made very coolly and calmly with a small brush. Thatās why I took it to my friend and asked him to make certain I didnāt spoil it, and why Iāll be going to this place to apply those finishing touches.ā