Not exactly, but for many purposes it's close enough. Kosher salt is salt that has large coarse grains, and no additives.
Sea salt from Maldon, UK
Salt is Salt (NaCl) no matter what is origins. Kosher, Sea, Maldon, Rock etc are all MARKETING terms designed to make what you are purchasing more expensive. Table Salt is Salt with a to which little anticaking agents such as sodium aluminosilicate or magnesium carbonate are added to make it free-flowing. Table salt is also "Iodized" by law in certain countries. Curing Salt is Salt with a little Sodium Nitrite added AND IS NOT THE SAME AS SALT (or Kosher Salt). This salt is mixed to cure meet and would be poisonous if not used as directed on the packaging.
Sea salt is a mineral and so long as anything that is non-kosher is not added to the dry salt crystals the salt is kosher. To say that sea salt is not kosher because non-kosher aquatic life lives in the ocean would be the same as saying that all fruits and vegetables are not kosher because they've come in contact with bugs.
Kosher salt has the exact same composition as table salt. Some salt, including sea salt, has small amounts of dextrose added to prevent caking and to maintain quality. You'd have to check the packaging for that.
The town of Nantwich is Cheshire has been a significant source of salt in England since Roman times. Maldon is Essex is the home of 'Maldon Sea Salt' - a popular brand of salt in England.
The same mass of salt, both are sodium chloride.
Yes, you can. However, kosher salt is the same as table salt which is normally less 'salty' than sea salt while containing higher levels of sodium. You would have to adjust the amount of salt used as it will most likely take more than a recipe using sea salt would call for.
May be
Almost all salt is kosher by default. The only issue would be if non-kosher additives such as flavourings were added to the salt. Sea salt is healthier than traditional table salt as the sodium level in sea salt is far lower.
It is possible.
it's an opinion, you tell me
Yes