(Mishnah): If Reuven gave wool to a dyer (Shimon), and the pot burned [the dye], Shimon pays the value of the wool.

If he dyed it poorly, if the Shevach (increased value) exceeds the Hotza'ah (expenses), Reuven gives to him the Hotza'ah. If the Hotza'ah exceeds the Shevach, he gives to him the Shevach.

If he was told to dye it red, and he died it black, or vice-versa, R. Meir says, [Shimon] pays the value of the wool [that he received];

R. Yehudah says, if the Shevach exceeds the Hotza'ah, Reuven gives to him the Hotza'ah. If the Hotza'ah exceeds the Shevach, he gives to him the Shevach.

(Gemara - Rav Huna): [Our Mishnah is when inferior] ingredients ruined it, but if the pot burned it (the flame was too high), he says 'yours is in front of you';

(Shmuel): Even if the ingredients ruined it, he says 'yours is in front of you.'