One may not sell his fruits once they have reached the tithing stage to some-one who is not trustworthy regarding tithes; nor during Sheviis to someone who is suspect regarding the [observance of the laws of] Sheviis [produce]. And if [some] matured early, he puts [aside] the early fruits and [may] sell the remainder.

One may not sell his straw, his olive pulp or his grape skins to someone who is not trustworthy regarding tithes to extract juice from them. For if he extracted [juice from them], it is liable in tithes, but it is exempt from terumah, because [when] one separates terumah, [he must] have in mind the ears that were not threshed, [the grain on] the sides [of the pile], and [the kernels] that are mixed with the straw.

[Regarding] one who purchases a field of vegetables in Surya, if [the vegetables] have not yet reached the tithing stage, they are obligated [in tithes]; but if they have reached the tithing stage, they are exempt [from tithes], and he may harvest [the vegetables] in his usual manner. R' Yehudah says: He may even hire workers to harvest [the vegetables]. Rabban Shimon ben Gamliel said: When are these things said? When he purchased land; but when he did not buy land, [even] if [the vegetables] had not yet reached the tithing stage, [they] are exempt [from tithes]. Rebbi says: Even [in that case, he must tithe the vegetables] by percentage.

[If] one makes temed and poured a measured volume of water and found [the resulting beverage to consist of] its [original] measure, it is exempt [from tithes]. R' Yehudah obligates [the temed in tithes]. [If] he found [the resulting liquid to consist of] more than its [original] measure, he may set aside [tithes] for it from a different place according to [its] percentage [of wine].