How does UV disinfect water. UV light is a naturally occurring component of solar radiation. It falls in the region between visible light and X-Rays in the electromagnetic spectrum.Generally, UV light is considered as falling between the wavelengths 100nm â 400nm, however UV can be categorized even further into separate regions.V light damages the DNA in bacteria, viruses, moulds and some protozoa, leaving them unable to perform cellular functions and multiply. UV is particularly highly effective against Cryptosporidium and Giardia â organisms resistant to chlorine that are a major risk to human health.
Intro: Dulce de Leche. Dulce de leche is a delicious caramel-like candy made from milk and sugar that's popular in many South American countries. It's called confiture de lait in French, and ...
Dulce de leche (pronounced DOOL-se de LE-che, meaning candy of milk or milk jelly in Spanish) is a rich and decadent sauce or syrup, similar in flavor to caramel.Unlike caramel, however, which is made by heating sugar, dulce de leche is prepared by heating sweetened condensed milk.Dulce de leche is especially common in the desserts of various South American countries, including Argentina and Uruguay. The can may burst. 2  Even though this is a popular way to make dulce de leche, it is unsafe and not recommended. 3  Do not overcook the dulce de leche, especially if you use the saucepan method, because it will burn easily.