סרידה

A woven mat (made of cloth or leather, bakers would place ingredients upon it, but it had no receptacle and was not susceptible to tumah)

that is placed

over the mouth of a tanur

[which was] sealed with a tightly fitting cover (the mat was sealed in place using clay),

if a crack developed between the tanur and the mat

its measure is the width of the mouth of an ox-goad (the 'mouth' was the wider end of this implement)

such that it cannot enter (if the crack is precisely the same width the prod cannot get through the hole, and the tanur is not considered sealed and is susceptible to contracting tumah via the canopy over a corpse);

Rabbi Yehuda says

[the seal is ineffective] if it enters (only if the hole is large enough to allow the ox-goad to pass through).

If the mat developed a crack

its measure is the width of the mouth of an ox-goad

that can enter (a more lenient standard than that of the clay with which it was attached);

Rabbi Yehudah says

such that it cannot enter (he holds it has a stricter standard).

If it was rounded (the crack did not go in a straight line from outside the tanur to its interior, but rather curved)

we do not view as being straight,

rather, its measure

is the width of the mouth of an ox-goad

that can enter (and if the curve prevents that entry, then the seal is still good).

פרק ט משנה חו

A tanur

whose eye developed a crack (after having been sealed with clay)

its measure is the width of a spindle

than can enter and exit while lit on fire;

Rabbi Yehuda says

which is not lit on fire.

If [the eye] it developed a hole on its side (not in the spot where it was sealed)

its measure is the size of spindle

than can enter and exit while not lit on fire;

Rabbi Yehudah says [while it is] lit on fire;

Rabbi Shimon says

[if the hole is] from the middle (where it was sealed) [then only if the spindle can] enter,

[if the hole is] from the side [then even if the spindle cannot] enter;

and so he would say

by the stopper of a barrel that developed a hole

its measure was the size of the second joint (where the grain meets the stalk)

of rye,

from the middle (of the stopper) that can enter

from the side (where the stopper was sealed to the barrel) that cannot enter;

and so he would say

by [the stoppers of] large casks that developed holes

their measure

was the size of the second joint of a reed

from the middle [that which] can enter

from the side [that which] cannot enter.

By what was this said

when they [the barrels and casks] were made for wine,

but if they were made for other beverages

even [a hole of] the smallest amount,

they are tamei.

By what was this said

when they [the holes] were not man-made

but if they were man-made

even [a hole of] the smallest amount,

they are tamei.

If [the body of a vessel] developed a hole

that which was made for food

their measure is with olives

that which was made for beverages

their measure is with beverages,

that which was made for both

we take it to the stringent measure

[even with] with a sealed cover

and it will let in drink [it is tamei].