Upon hearing Luo Zhiyong's words, Fang Pingying suddenly remembered something from her past life—electric hand warmers with a small heating element that could be plugged in. You only needed to fill it with water, and it would retain heat.
Even if it got cold, just plug it in for a few more minutes, and it could be used for hours again. That thing was much more convenient than a hot water bottle.
Maybe she could try making such a device at this time. It was bound to make money.
Once this idea came to Fang Pingying, she took note of it, planning to find someone familiar with these devices one day to inquire about the capital needed to produce such an item and its profitability.
Luo Zhiyong, still worried about the safety of the glass bottle, wrapped the warm water bottle in several layers of cloth for Fang Pingying to hold in her hands before she got on the bus to the city.
