[Avodah] Keilim and Bitul beShishim

[Micha Berger via Avodah]

Halakhah works with the assumption that a keli doesn't hold 60 times its own
volume, so that if the keli itself is treif, any food you cooked in it
was "treifed up".

Does this assumption with today's cookware made by drawing metal sheets
onto a forming die or spinning it onto a mandrel?

According to
<http://www.webstaurantstore.com/guide/501/types-of-cookware.html>
most pots are between 22 and 10 gauge, or at most (10 gauge galvanized
steel) .14" thick (see chart at
<http://cdnimg2.webstaurantstore.com/uploads/buying_guide/2015/12/metalgauges.pdf>).

This is much much thinner than when pots were made by hand by a blacksmith.

Eg, this 1-1/2 quart pot (including handle and lid, rounded up for
shippng) weighs 1 lb <http://www.amazon.com/dp/B00008CM69>. Meaning,
it is made of .3 cu in or so of metal (based on weights at
<http://www.chathamsteel.com/products/stainless/stainless-sheet>)
or 1/192 or a quart. Bitul beshishim?

Tir'u baTov!
-Micha

-- 
Micha Berger             When faced with a decision ask yourself,
micha at aishdas.org        "How would I decide if it were Ne'ilah now,
http://www.aishdas.org   at the closing moments of Yom Kippur?"
Fax: (270) 514-1507                            - Rav Yisrael Salanter