If you’re sensitive to metallic residual taste, then look for containers made from a type of stainless that meets your needs. There are many kinds [1], I prefer 316 but you might need 321 for example. Some day I’ll engage a machinist to fab one up for me that uses standard gaskets I can get from any MRO firm in the world.

[1] https://www.brikksen.com/home/page/blog?p=the-different-grad...