Citric acid is a really great method and avoids the lingering smell of vinegar. I personally use this and then let dry, spray down with hydrogen peroxide and then rinse with rodi. You probably don’t have to do the last bit but it’s a good habit imo.After some research, wanna see what you all think, citric acid or distilled white vineger? With or without rice or popcirn 'kernals to"scrub" the inside?