Note, even the "good" brand can go rancid if you don't take care of your stash. I highly recommend cutting one open for a smell test if you're unsure. Also, if

Note, even the "good" brand can go rancid if you don't take care of your stash. I highly recommend cutting one open for a smell test if you're unsure. Also, if you're getting gross burps, your batch may be bad. I've used Aqua Omega (unaffiliated) with great success for years.