Why tea stains don’t stick to teacups when using a dishwasher?
Has anyone noticed that their tea stains on teacups have become less of an issue since they started using a dishwasher instead of handwashing?
In fact, this is due to the chemical properties of tea stains and dishwasher detergents.
This article We’ve discussed methods for removing tea stains from teeth, but in this article, we’ll explore how teacup staining interacts with dishwashers.
Tea stains on teacups and other items are acidic because they result from oxidation and deposition. You might have heard that baking soda can clean tea stains—this is because baking soda is weakly alkaline and can effectively remove acidic stains.
On the other hand, hand dishwashing detergents are usually neutral, as prolonged contact with alkaline solutions can irritate the skin. Thus, hand dishwashing detergents may not be very effective at removing tea stains.
How about dishwasher detergents? There are various types of dishwasher detergents, but many are weakly alkaline compared to hand dishwashing detergents. Since these detergents do not come into direct contact with your skin, they are less likely to cause irritation. As a result, tea stains, which are acidic, can be removed more easily with dishwasher detergents, similar to how baking soda works.
That’s the scoop on tea stains and dishwashers. It might not be a common topic of conversation over a leisurely tea with family, but it’s an interesting tidbit nonetheless!
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