How do I know if a lemon is bad?

A fresh lemon will have a bright smooth skin and feel firm and heavy for its size. Some common traits of bad lemons are a soft texture and some discoloration. Once a soft spot develops it becomes moist moist and will soon develop mold (mould), usually white in color at first. Throw out moldy lemons.Click to see full answer. Moreover, can old lemons make you sick? It can upset your stomach. Too much of anything is a bad thing, even when it comes to lemon water. While lemon juice contains a wide range of health benefits, squeezing too much in your water can cause dangerous side effects to your health including worsening ulcers and developing GERD, Livestrong reports.Likewise, can you use old lemons? If there’s no rot or mold, the lemon should be safe to use. But that doesn’t necessarily mean you’d want to use it. Over time lemons lose some of their water and thus lose their firmness. If your specimen yields only slightly to pressure, it’s perfectly fine. Accordingly, how long can you keep lemons? about 3 to 4 weeks What to do with lemons that are going bad? 19 Handy Things to Do With a Little Leftover Lemon Throw it in the garbage disposal. At the end of the evening, after dishes are rinsed and bellies are full, put half a lemon in the garbage disposal. Treat acne. Quickly clean a microwave. Whiten clothes and fabrics. Soothe sunburns. Scrub stuck-on food. Get rid of corny feet. Banish greasy hair.