This photo shows yellowish stains left behind from food spills. Since bleach is quite toxic and when used on formica can leave permanent yellowing stains a safer more natural cleaning option is hydrogen peroxide. Adding Bon Ami or Baking Soda ads a gentle abrasive action while cleaning these stains.
Once the hydrogen peroxide and baking soda have been applied to the stain allow to sit for about 20 minutes then gently rub with the scrubby side of a sponge and wipe clean with a microfiber cloth and water.
Ta da! No bleach! No dangerous chemicals used!