Related על מעשרות 1:6

One who gathers [produce] in the field -- as soon as he gathered for all his needs, behold, he is liable. One who gathers in the field -- as soon as as he collected what he intends to twist into [a string of heads of] garlic or into a bundle of onions, he is not liable until he twists or bundles. Ears of corn that fell from the threshing floor or fell off of the heap, or dried-up peas -- as soon as he they are stacked on the threshing floor, he may not eat them until they are tithed. Peas -- once they are sifted [and thus liable for tithes] he may [nonetheless] take them from under the sieve-basket and eat them [before tithing].